CN106534441B - A kind of mobile phone screen detection device - Google Patents
A kind of mobile phone screen detection device Download PDFInfo
- Publication number
- CN106534441B CN106534441B CN201611081113.4A CN201611081113A CN106534441B CN 106534441 B CN106534441 B CN 106534441B CN 201611081113 A CN201611081113 A CN 201611081113A CN 106534441 B CN106534441 B CN 106534441B
- Authority
- CN
- China
- Prior art keywords
- guide rail
- mobile phone
- detection device
- driving
- touch screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/24—Arrangements for testing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The present invention relates to mobile phone testing equipment fields, more particularly to a kind of mobile phone screen detection device.Including vertically disposed first guide rail and the second guide rail, the first driving mechanism for driving the first guide rail to move along the second guide rail is installed on first guide rail, the second driving mechanism for being equipped with pedestal on first guide rail and pedestal being driven to move along the first guide rail, the third driving mechanism for being equipped with touch screen mechanism on the pedestal and touch screen mechanism being driven to move up and down, the touch screen mechanism is equipped with the regulating part for adjusting touch screen mechanism force size, and the lower section of the touch screen mechanism is equipped with the fixed mechanism for installing mobile phone.The beneficial effects of the present invention are: structure is simple, movement is flexibly stablized, the all-around mobile of detection device is realized by two guide rails, to realize that the click scribing line to mobile phone different location is examined, checkability is high, regulating part is set and is conveniently adjusted the dynamics crossed to mobile phone screen taps, meets a variety of testing requirements.
Description
Technical field
The present invention relates to mobile phone testing equipment fields, more particularly to a kind of mobile phone screen detection device.
Background technique
Mobile phone needs to check whether mobile phone sample is qualified, especially touches by various performance detection apparatus in production process
The mobile phone for touching screen needs to detect mobile phone screen clicks scribing line later whether can normal use multiple.Traditional detection device is logical
It crosses mechanical arm and carries out mechanical click or scribing operation, flexible operation degree is low, and mechanical arm is in operation to mobile phone
The force of screen can not be adjusted, since mechanical arm flexibility ratio is low when can only carry out single dynamics detection, and detect,
It is easy to cause accidental injury to mobile phone screen, influences detection structure and detection quality.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of mobile phone screen detection device,
Mobile phone screen testing inspection flexibility ratio is low, screen taps scribing line dynamics is difficult to adjust for solving in the prior art, is easy to damage
The problems such as mobile phone screen, detection effect is poor.
In order to achieve the above objects and other related objects, the present invention provides a kind of mobile phone screen detection device, including vertical
The first guide rail and the second guide rail being arranged are equipped on first guide rail for driving the first guide rail to move along the second guide rail
The first driving mechanism, the second driving machine that pedestal is equipped on first guide rail and pedestal is driven to move along the first guide rail
Structure, the third driving mechanism that touch screen mechanism is equipped on the pedestal and touch screen mechanism is driven to move up and down, the touch screen mechanism
It is equipped with the regulating part for adjusting touch screen mechanism force size, the lower section of the touch screen mechanism is equipped with for installing consolidating for mobile phone
Determine mechanism.
The beneficial effects of the present invention are: structure is simple, movement is flexibly stablized, the complete of detection device is realized by two guide rails
Orientation is mobile, so that the click for realizing to mobile phone different location is crossed and examined, checkability is high, and setting regulating part is conveniently adjusted pair
Mobile phone screen clicks the dynamics of scribing line, meets a variety of testing requirements.
Further, the touch screen mechanism includes runner, drive rod and connection frame, and the runner and third driving mechanism connect
It connects, one end of the drive rod is connect with runner bias, and the other end of the drive rod is connect with connection frame, on the connection frame
Equipped with bar is pressed, the regulating part, which is mounted on, to be pressed on bar.
Further, the bar that presses laterally is protruded equipped with protrusion, and the regulating part inside is equipped with through-hole, the through-hole
Inner wall is equipped with the locking slot cooperated with protrusion.
Further, the locking slot is L-type structure, and the protrusion slides into locking slot until withstanding along the lower end of locking slot
The upper end of locking slot, rotates regulating part, and protrusion is stuck in locking slot.
Beneficial effect using above-mentioned further scheme is: being connect by connection frame with runner bias, by the circumference of runner
Movement is converted into pressing the up and down motion of bar, realizes the verification of mobile phone screen, and by the way that regulating part tune is arranged on pressing bar
Node hits the dynamics for pressing mobile phone screen, simple to operate, and test is accurate, and regulating part uses the side of being detachably connected with bar is pressed
Formula connection, is conveniently replaceable, structure is simple, assembly and disassembly is simple to operate.
Further, counter is provided on the pedestal, the side of the runner is equipped with induction rod, and runner rotates dynamic
Answer bar by counter, counter records press the number of the click mobile phone screen of bar.
Further, the both ends of first guide rail are equipped with rotating roller, and conveyer belt, the pedestal installation are equipped in rotating roller
On the conveyor belt, the second driving mechanism drives pedestal mobile by driving rotating roller rotation.
Further, the both ends of second guide rail are equipped with rotating roller, are equipped with conveyer belt, first guide rail in rotating roller
One end installation on the conveyor belt, the first driving mechanism drives the first guide rail mobile by driving rotating roller rotation.
Further, displacement sensor is equipped on first guide rail and the second guide rail.
Beneficial effect using above-mentioned further scheme is: the first guide rail and the second guide rail use rotating roller driving conveying belt
Structure realizes the movement of pedestal and the first guide rail, so that driving mechanism is without movement, only need to convert rotation direction is just able to achieve bottom
The direction of motion of seat and the first guide rail, switching is quick and convenient, and setting displacement sensor is conducive to monitor whether all parts reach
Designated position.
Further, the fixed mechanism includes the first fixed plate, the second fixing plate and moving plate, and the movable plate is located at the
Between one fixed plate and the second fixed plate, it is separate and close to the second fixed plate that first fixed plate is equipped with driving movable plate
Screw rod, one end of screw rod pass through the second fixed plate and connect with movable plate, and screw rod rotation drives movable plate mobile.
Further, the movable plate is equipped with guide rod, and one end of the guide rod is fixed on movable plate, the guiding
The other end of bar passes through the first fixed plate.
Beneficial effect using above-mentioned further scheme is: mobile phone loading or unloading operation is simple and convenient, and mobile phone is avoided to detect
It is shaken in journey, improves the stability of detection.
Detailed description of the invention
Fig. 1 is the main view of the embodiment of the present invention;
Fig. 2 is the top view of the embodiment of the present invention;
Fig. 3 is the structural schematic diagram for pressing bar of the invention;
Fig. 4 is the structural schematic diagram of regulating part of the invention.
Piece mark explanation
11 first guide rails;
12 second guide rails;
2 pedestals;
31 runners;
32 drive rods;
33 connection frames;
34 regulating parts;
341 through-holes;
342 locking slots;
35 press bar;
351 protrusions;
36 counters;
37 induction rods;
4 displacement sensors;
5 mobile phones;
61 first fixed plates;
62 second fixed plates;
63 screw rods;
64 guide rods;
65 movable plates;
71 first driving mechanisms;
72 second driving mechanisms;
73 third driving mechanisms;
81 rotation rods;
82 conveyer belts.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that the term of such as "upper", "lower", "left", "right", " centre " and " one " cited in this specification, also
Only being illustrated convenient for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in nothing
Under essence change technology contents, when being also considered as the enforceable scope of the present invention.
As depicted in figs. 1 and 2, mobile phone screen detection device of the invention, including the first guide rail 11 and the second guide rail 12, the
One guide rail 11 and the second guide rail 12 are vertically arranged, and are equipped on the first guide rail 11 for driving the first guide rail 11 along the second guide rail
12 the first mobile driving mechanisms 71.The for being equipped with pedestal 2 on first guide rail 11 and driving that pedestal 2 moves along the first guide rail 11
Two driving mechanisms 72.Touch screen mechanism and third driving mechanism 73 are installed, third driving mechanism 73 and touch screen mechanism connect on pedestal 2
It connects and touch screen mechanism is driven to move up and down, touch screen mechanism is equipped with the regulating part 34 for adjusting touch screen mechanism force size, adjusts
Counterweight can be used by saving part 34, and the lower section of touch screen mechanism is equipped with the fixed mechanism for installing mobile phone 5.First driving mechanism 71,
Second driving mechanism 72, third driving mechanism 73 are motor, and using motor driven, structure is simple, stable, service life
It is long, it is at low cost.
As depicted in figs. 1 and 2, touch screen mechanism includes runner 31, drive rod 32 and connection frame 33, and runner 31 and third drive
Mechanism 73 connects, and one end of drive rod 32 is connect with 31 bias of runner, and the other end of drive rod 32 is connect with connection frame 33, connection
Frame 33, which is equipped with, presses bar 35, and third driving mechanism 73 is driven by the rotation of runner 31 and presses the up and down motion of bar 35.Drive rod 32
It is eccentrically set on runner 31, third driving mechanism 73 drives runner 31 to rotate, and runner 31 drives connection frame by drive rod 32
33 move up and down, so that the bar 35 that presses on connection frame 33 just moves up and down the screen for clicking mobile phone 5, due to runner 31 and driving
Bar 32 uses eccentric setting, so that press bar 35 has certain displacement in the horizontal direction while moving up and down.Press bar
35 are movably arranged on connection frame 33, and the upper end for pressing bar 35 is equipped with regulating part 34, and the lower end for pressing bar 35 passes through connection frame 33.
Counter 36 is provided on pedestal 2, the side for turning 31 wheels is equipped with induction rod 37, and the rotation of runner 31 drives induction rod 37 and then to turn
Dynamic, runner 31 turns around can be primary by counter 36, and counter 36 just counts, can according to the quantity that counter 36 counts
Obtain the number of clicks that mobile phone screen is subject to.
As shown in Figure 3 and Figure 4, the lower end for pressing bar 35 is identical as Mobile phone screen touch stylus material, convenient for improving the accurate of measurement
Degree presses bar 35 along its side protrusion and is equipped with protrusion 351, is equipped with through-hole 341 inside regulating part 34,341 inner wall of through-hole is equipped with
The locking slot 342 cooperated with protrusion 351.Locking slot 342 is L-type structure, and protrusion 341 slides into along the lower end of locking slot 342
Until withstanding the upper end of locking slot 342, rotation regulating part 34, protrusion 341 is stuck in locking slot 342, needs more locking slot 342
It changes when unloading regulating part 34, rotates regulating part 34, protrusion 341 exits locking slot 342.As depicted in figs. 1 and 2, when turn
When wheel 31 presses the lower end in contact mobile phone 5 of bar 35 by the drive of drive rod 32, if the conflict power for pressing 35 lower end of bar receiving is excessive,
It presses bar 35 just to move up, therefore be just adjustable the touch pressure for pressing bar 35 by replacing regulating part 34, it is simple to operate,
Detection range is wide, and detection is accurate.The structure is simple, component manufacturing cost is low, and uses the detachable mounting structure, operation letter
Just, convenient for replacing the regulating part of different weight according to different force demands, regulating part can be used with circulating repetition, be increased folk prescription
Test scope.
As depicted in figs. 1 and 2, fixed mechanism includes the first fixed plate 61, the second fixed plate 62 and movable plate 65, movable plate
65 between the first fixed plate 61 and the second fixed plate 62, and mobile phone 5 is placed between the second fixed plate 62 and movable plate 65.The
One fixed plate 61 be equipped with driving movable plate 65 far from and close to the second fixed plate 62 screw rod 63, one end of screw rod 63 passes through the
Two fixed plates 62 are connect with movable plate 65, and the rotation of screw rod 63 drives movable plate 65 mobile, to realize clamping and the pine of mobile phone 5
It opens.Movable plate 65 is equipped with guide rod 64, and one end of guide rod 64 is fixed on movable plate 65, and the other end of guide rod 64 passes through
First fixed plate 61, the rotation of screw rod 63 drive movable plate 65 to move along the axial direction of guide rod 64.
As depicted in figs. 1 and 2, the both ends of the first guide rail 11 are equipped with rotating roller 81, are equipped with conveyer belt 82 in rotating roller 81,
Pedestal 2 is mounted on conveyer belt 82, and the second driving mechanism 72 just drives pedestal 2 mobile by the rotation of driving rotating roller 81.First
Guide rail 11 be equipped with displacement sensor 4, the second driving mechanism 72 driving pedestal 2 moved along the first guide rail 11, displacement sensor 4 with
Controller connection, when the mobile distance of pedestal 2 reach controller setting apart from when, the second driving mechanism 72 converts rotation direction
So that 2 counter motion of pedestal, moves in circles and realizes the reciprocal click scribing operation of mobile phone screen different location.Second guide rail 12
Both ends are equipped with rotating roller 81, are equipped with conveyer belt 82 in rotating roller 81, one end of the first guide rail 11 is mounted on the second guide rail 12
Conveyer belt 82 on, the first driving mechanism 71 is rotated by the rotating roller 81 on the second guide rail 12 of driving, first is led to drive
Rail 11 is mobile.Second guide rail 12 is equipped with displacement sensor 4, and displacement sensor 4 is connect with controller, when the first guide rail 11 is mobile
Distance reach controller setting apart from when, the first driving mechanism 71 transformation rotation direction makes the first guide rail 11 reversely fortune
It is dynamic, it moves in circles and realizes the reciprocal click scribing operation of mobile phone screen different location, click scribing line and reach prediction number or pre-
It surveys whether time observation mobile phone works normally, if mobile phone operates normally, just illustrates that mobile phone is up-to-standard.
The present invention realizes the motor scribing line detection of mobile phone screen by simple structure, and real by setting regulating part
The adjustment of scribing line dynamics is now clicked, it is simple to operate, it is applied widely, it improves detection efficiency and reduces detection difficulty.
By the way that the pedestal 2 that can be moved left and right, the first guide rail 11 that can be moved forward and backward and touch screen mechanism moving up and down, three is arranged
It can combine while move, can not also be interfere with each other with self-movement, so as to be expired according to different demands to mobile phone 5
The click of screen is crossed, and realizes the comprehensive detection of screen, and detection efficiency is high, and accuracy in detection is high.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of mobile phone screen detection device, it is characterised in that: including vertically disposed first guide rail and the second guide rail, described
The first driving mechanism for driving the first guide rail to move along the second guide rail is installed on one guide rail, is pacified on first guide rail
Equipped with the second driving mechanism that pedestal and driving pedestal are moved along the first guide rail, touch screen mechanism and driving are installed on the pedestal
The third driving mechanism that touch screen mechanism moves up and down, the touch screen mechanism are equipped with the tune for adjusting touch screen mechanism force size
Part is saved, the lower section of the touch screen mechanism is equipped with the fixed mechanism for installing mobile phone;
The touch screen mechanism includes runner, drive rod and connection frame, and the runner is connect with third driving mechanism, the drive rod
One end connect with runner bias, the other end of the drive rod is connect with connection frame, the connection frame be equipped with press bar, institute
It states regulating part and is mounted on and press on bar, and the regulating part is counterweight.
2. a kind of mobile phone screen detection device according to claim 1, it is characterised in that: the bar that presses laterally protrudes
Equipped with protrusion, through-hole is equipped with inside the regulating part, the through-hole wall is equipped with the locking slot cooperated with protrusion.
3. a kind of mobile phone screen detection device according to claim 2, it is characterised in that: the locking slot is L-type structure,
The protrusion slides into locking slot until withstanding the upper end of locking slot along the lower end of locking slot, rotates regulating part, and protrusion is stuck in
In locking slot.
4. a kind of mobile phone screen detection device according to claim 1, it is characterised in that: be provided with counting on the pedestal
Device, the side of the runner are equipped with induction rod, and runner rotation drives induction rod to pass through counter, and counter records press the point of bar
Hit the number of mobile phone screen.
5. a kind of mobile phone screen detection device according to claim 1, it is characterised in that: the both ends of first guide rail are set
There is rotating roller, conveyer belt is installed, on the conveyor belt, the second driving mechanism passes through driving rotation for the pedestal installation in rotating roller
Roller rotation drives pedestal mobile.
6. a kind of mobile phone screen detection device according to claim 1, it is characterised in that: the both ends of second guide rail are set
There is rotating roller, conveyer belt is installed, on the conveyor belt, the first driving mechanism is logical for one end installation of first guide rail in rotating roller
Rotating roller of overdriving rotation drives the first guide rail mobile.
7. a kind of mobile phone screen detection device according to claim 1, it is characterised in that: first guide rail and second is led
Displacement sensor is equipped on rail.
8. a kind of mobile phone screen detection device according to claim 1, it is characterised in that: the fixed mechanism includes first
Fixed plate, the second fixing plate and moving plate, for the movable plate between the first fixed plate and the second fixed plate, described first is solid
Fixed board is equipped with separate and close to the second fixed plate the screw rod of driving movable plate, and one end of screw rod passes through the second fixed plate and movement
Plate connection, screw rod rotation drive movable plate mobile.
9. a kind of mobile phone screen detection device according to claim 8, it is characterised in that: the movable plate is equipped with guiding
One end of bar, the guide rod is fixed on movable plate, and the other end of the guide rod passes through the first fixed plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611081113.4A CN106534441B (en) | 2016-11-30 | 2016-11-30 | A kind of mobile phone screen detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611081113.4A CN106534441B (en) | 2016-11-30 | 2016-11-30 | A kind of mobile phone screen detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106534441A CN106534441A (en) | 2017-03-22 |
CN106534441B true CN106534441B (en) | 2019-06-14 |
Family
ID=58353559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611081113.4A Active CN106534441B (en) | 2016-11-30 | 2016-11-30 | A kind of mobile phone screen detection device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106534441B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107817440B (en) * | 2017-10-26 | 2020-06-12 | 东营南科电气有限责任公司 | Circuit switch detects with resistant test equipment that clicks |
CN110456175A (en) * | 2018-05-08 | 2019-11-15 | 深圳市优必选科技有限公司 | Screen-jumping detection method and device, terminal equipment and storage medium |
CN108429847B (en) * | 2018-06-14 | 2020-06-26 | 四川领歌智谷科技有限公司 | Pressure test equipment for smart phone |
CN110248014B (en) * | 2019-07-29 | 2020-10-09 | 江西小辣椒通讯技术有限责任公司 | Detection device for mobile phone screen |
CN111015736A (en) * | 2019-12-18 | 2020-04-17 | 长沙智能制造研究总院有限公司 | Click test method based on cooperative robot |
CN113232029A (en) * | 2021-05-07 | 2021-08-10 | 张伟杰 | Mobile phone click robot |
CN113899977A (en) * | 2021-12-10 | 2022-01-07 | 深圳市奇彩液晶显示技术有限公司 | Full-automatic detection equipment for touch screen of mobile phone screen |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09243708A (en) * | 1996-03-07 | 1997-09-19 | Kokusai Electric Co Ltd | Unit for inspecting characteristic of portable wireless machine |
CN2784906Y (en) * | 2004-12-28 | 2006-05-31 | 比亚迪股份有限公司 | Cell phone key fatigue tester |
CN101187685A (en) * | 2007-10-18 | 2008-05-28 | 张福尧 | Touch panel test device and method |
CN105258941A (en) * | 2015-11-30 | 2016-01-20 | 广东小天才科技有限公司 | Key life test device |
CN205027619U (en) * | 2015-09-17 | 2016-02-10 | 四川德铭电子科技有限公司 | Wear -resisting testing arrangement of button solidification printing ink |
-
2016
- 2016-11-30 CN CN201611081113.4A patent/CN106534441B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09243708A (en) * | 1996-03-07 | 1997-09-19 | Kokusai Electric Co Ltd | Unit for inspecting characteristic of portable wireless machine |
CN2784906Y (en) * | 2004-12-28 | 2006-05-31 | 比亚迪股份有限公司 | Cell phone key fatigue tester |
CN101187685A (en) * | 2007-10-18 | 2008-05-28 | 张福尧 | Touch panel test device and method |
CN205027619U (en) * | 2015-09-17 | 2016-02-10 | 四川德铭电子科技有限公司 | Wear -resisting testing arrangement of button solidification printing ink |
CN105258941A (en) * | 2015-11-30 | 2016-01-20 | 广东小天才科技有限公司 | Key life test device |
Also Published As
Publication number | Publication date |
---|---|
CN106534441A (en) | 2017-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106534441B (en) | A kind of mobile phone screen detection device | |
CN201841122U (en) | Positioning device for full-automatic solar cell testing and sorting equipment | |
CN203903585U (en) | Deviation correction mechanism used for pole plate material belt in battery production line | |
CN209182012U (en) | A kind of spring pressure detection machine | |
CN202229745U (en) | Device for detecting automobile engine cylinder body end face pin hole position | |
CN208156150U (en) | A kind of online ICT test device | |
CN203605923U (en) | Automatic synthesis detection device used to detect T-shape elevator guide rail | |
CN204329862U (en) | Large-diameter steel pipe ovality pick-up unit | |
CN206209016U (en) | A kind of mobile phone clicks on scribe test machine | |
CN205015224U (en) | Accurate spring leaf rigidity measuring apparatu | |
CN208016111U (en) | Positioning mechanism for flexible circuit board tester | |
CN209280819U (en) | A kind of electronic transformer automatic testing equipment | |
CN204007973U (en) | Panorama skylight sliding force device for fast detecting | |
CN203889582U (en) | Transmission assembly of automatic comprehensive detection instrument | |
CN107014825B (en) | High-precision conveying device for appearance detection of transparent flat plate | |
CN203528057U (en) | Universal locating mechanism for screen printing plate | |
CN207535458U (en) | Diaphragm dressing plate | |
CN209647020U (en) | A kind of flatness detection device suitable for tablet personal computer rear cover | |
CN103465612A (en) | Full-automatic silicon screen printing machine with walking boards | |
CN208231552U (en) | A kind of glass plate edge polisher transition conveying device | |
CN208077012U (en) | A kind of special lateral accurate movement equipment of aquaculture | |
CN108225404B (en) | Detection mechanism for reinforcing sheet attached to soft board | |
CN107697600B (en) | Full-automatic production and test production line suitable for various power boards | |
CN206787698U (en) | A kind of weighing-appliance with transfer function | |
CN112407861A (en) | Automatic screw conveyer pipe for screw machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PP01 | Preservation of patent right |
Effective date of registration: 20200403 Granted publication date: 20190614 |
|
PP01 | Preservation of patent right |