FR2322740A1 - Procede et dispositif pour fabriquer un produit stratifie plan par extrusion - Google Patents
Procede et dispositif pour fabriquer un produit stratifie plan par extrusionInfo
- Publication number
- FR2322740A1 FR2322740A1 FR7626798A FR7626798A FR2322740A1 FR 2322740 A1 FR2322740 A1 FR 2322740A1 FR 7626798 A FR7626798 A FR 7626798A FR 7626798 A FR7626798 A FR 7626798A FR 2322740 A1 FR2322740 A1 FR 2322740A1
- Authority
- FR
- France
- Prior art keywords
- extrusion
- manufacturing
- laminated product
- flat laminated
- flat
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0005—Direct recuperation and re-use of scrap material during moulding operation, i.e. feed-back of used material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/275—Recovery or reuse of energy or materials
- B29C48/277—Recovery or reuse of energy or materials of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
- B29C48/2888—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules in band or in strip form, e.g. rubber strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0063—Cutting longitudinally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
- Y10T156/1087—Continuous longitudinal slitting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
- Y10T156/1317—Means feeding plural workpieces to be joined
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
- Y10T156/1317—Means feeding plural workpieces to be joined
- Y10T156/1343—Cutting indefinite length web after assembly with discrete article
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
- Y10T156/1374—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing with means projecting fluid against work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI752496A FI52040C (fi) | 1975-09-04 | 1975-09-04 | Yhtäjaksoinen menetelmä ja laite tasaisen kerrostetun tuotteen valmist amiseksi pursottamalla sekä tuotteen irtileikattavien reunakaistojen t alteenottamiseksi. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2322740A1 true FR2322740A1 (fr) | 1977-04-01 |
FR2322740B1 FR2322740B1 (fr) | 1980-05-16 |
Family
ID=8509412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7626798A Granted FR2322740A1 (fr) | 1975-09-04 | 1976-09-06 | Procede et dispositif pour fabriquer un produit stratifie plan par extrusion |
Country Status (11)
Country | Link |
---|---|
US (1) | US4093486A (fr) |
JP (1) | JPS5232053A (fr) |
AT (1) | AT366623B (fr) |
CA (1) | CA1084786A (fr) |
CH (1) | CH612618A5 (fr) |
DE (1) | DE2638623C3 (fr) |
FI (1) | FI52040C (fr) |
FR (1) | FR2322740A1 (fr) |
GB (1) | GB1550923A (fr) |
IT (1) | IT1124761B (fr) |
SE (1) | SE422549B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800003921A1 (it) * | 2018-03-26 | 2019-09-26 | Colines Spa | Impianto e metodo per il recupero in linea dei rifili in linee di estrusione di film di materia plastica |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4272312A (en) * | 1979-11-01 | 1981-06-09 | Champion International Corporation | Process for extruding films of thermoplastic polyester film-forming materials |
US4287147A (en) * | 1980-04-25 | 1981-09-01 | Mobil Oil Corporation | Multilayer film manufacture utilizing scrap resin |
JPS60111241A (ja) * | 1983-11-22 | 1985-06-17 | Mitsubishi Paper Mills Ltd | 写真用支持体の製造方法 |
DE3402666A1 (de) * | 1984-01-26 | 1985-08-08 | Vsesojuznyj naučno-issledovatel'skij i proektnyj institut "Teploproekt", Moskva | Verfahren zur herstellung eines mehrschichtigen materials und einrichtung zur durchfuehrung desselben |
US7078075B1 (en) | 1995-02-23 | 2006-07-18 | H.B. Fuller Licensing & Financing Inc. | Method for producing a continuous thermoplastic coating and articles constructed therefrom |
DE19753266B4 (de) * | 1997-12-01 | 2010-10-07 | H.B. Fuller Licensing & Financing, Inc., St. Paul | Verfahren zum Verbinden luftundurchlässiger Materialien |
US6364989B1 (en) * | 1999-09-17 | 2002-04-02 | Harout Ohanesian | Method for enhancing an extruded substrate with a decorative laminating film |
JP6917680B2 (ja) * | 2016-04-27 | 2021-08-11 | 芝浦機械株式会社 | 光学シート成形装置、光学シート成形方法 |
CN112839791B (zh) * | 2018-10-29 | 2022-05-06 | 株式会社瑞光 | 层叠体的制造方法及制造装置 |
EP4059693B1 (fr) * | 2021-03-17 | 2023-07-26 | Akzenta Paneele + Profile GmbH | Installation de production destinée à la fabrication de panneaux extrudés |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE55130C (de) * | FR. RASSMUS in Magdeburg, Wallstr. 2 b | Schnitzelmesserkasten | ||
US1913330A (en) * | 1930-09-10 | 1933-06-06 | Goodyear Tire & Rubber | Method of obtaining treads consisting of two different kinds of rubber compound |
US3130647A (en) * | 1957-09-10 | 1964-04-28 | Riegel Paper Corp | Duplex packaging material and method of making same |
US2928133A (en) * | 1958-03-20 | 1960-03-15 | Armstrong Cork Co | Method of producing sheet material |
US3165433A (en) * | 1962-04-20 | 1965-01-12 | Ford Motor Co | Apparatus to trim resin from the edge of laminated sheets |
US3192293A (en) * | 1962-06-19 | 1965-06-29 | Abram H Van Riper | Method and apparatus for reprocessing plastic waste material |
GB1003660A (en) * | 1963-07-01 | 1965-09-08 | Tetra Pak Ab | A process for coating a carrier web |
US3340124A (en) * | 1963-07-18 | 1967-09-05 | Adams Paper Converting Company | Method and apparatus for coating paper |
DE1504015A1 (de) * | 1964-08-19 | 1969-06-19 | Basf Ag | Verfahren zur Herstellung homogener Kalanderfolien |
GB1101472A (en) * | 1965-04-15 | 1968-01-31 | Tetra Pak Ab | A method of producing a laminate packaging material |
US3448183A (en) * | 1966-08-05 | 1969-06-03 | Dow Chemical Co | Method for the preparation of multilayer film |
US3551242A (en) * | 1966-12-19 | 1970-12-29 | Phillips Petroleum Co | Unprocessed material utilization through selective contact |
US3519514A (en) * | 1967-02-27 | 1970-07-07 | Sobrefina Sa | Method in the manufacture of objects,preferably packages,with walls having at least two layers of different thermoplastic material laminated to one another |
US3737354A (en) * | 1969-08-28 | 1973-06-05 | Mitsubishi Petrochemical Co | Production of synthetic papers |
US3749629A (en) * | 1971-03-12 | 1973-07-31 | Reynolds Metals Co | Method of making a decorative lamination |
US3733160A (en) * | 1971-03-18 | 1973-05-15 | Standard Oil Co | Material handling system for plastic film molding apparatus |
GB1367627A (en) * | 1971-12-02 | 1974-09-18 | Masson Scott Thrissell Eng Ltd | Wrappers for tramophone records |
-
1975
- 1975-09-04 FI FI752496A patent/FI52040C/fi not_active IP Right Cessation
-
1976
- 1976-08-24 CA CA259,705A patent/CA1084786A/fr not_active Expired
- 1976-08-24 CH CH1071176A patent/CH612618A5/xx not_active IP Right Cessation
- 1976-08-25 US US05/717,511 patent/US4093486A/en not_active Expired - Lifetime
- 1976-08-26 AT AT636276A patent/AT366623B/de not_active IP Right Cessation
- 1976-08-27 DE DE2638623A patent/DE2638623C3/de not_active Expired
- 1976-08-31 GB GB3599276A patent/GB1550923A/en not_active Expired
- 1976-09-02 IT IT2678676A patent/IT1124761B/it active
- 1976-09-02 JP JP10538176A patent/JPS5232053A/ja active Granted
- 1976-09-03 SE SE7609759A patent/SE422549B/xx unknown
- 1976-09-06 FR FR7626798A patent/FR2322740A1/fr active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800003921A1 (it) * | 2018-03-26 | 2019-09-26 | Colines Spa | Impianto e metodo per il recupero in linea dei rifili in linee di estrusione di film di materia plastica |
WO2019186311A1 (fr) * | 2018-03-26 | 2019-10-03 | Colines S.P.A. | Installation et procédé de récupération en ligne de chutes dans des lignes d'extrusion de film en matière plastique |
Also Published As
Publication number | Publication date |
---|---|
CA1084786A (fr) | 1980-09-02 |
CH612618A5 (fr) | 1979-08-15 |
ATA636276A (de) | 1981-09-15 |
US4093486A (en) | 1978-06-06 |
JPS5232053A (en) | 1977-03-10 |
FR2322740B1 (fr) | 1980-05-16 |
GB1550923A (en) | 1979-08-22 |
JPS5337383B2 (fr) | 1978-10-07 |
FI52040C (fi) | 1977-06-10 |
IT1124761B (it) | 1986-05-14 |
AT366623B (de) | 1982-04-26 |
DE2638623C3 (de) | 1980-05-29 |
DE2638623A1 (de) | 1977-03-17 |
SE422549B (sv) | 1982-03-15 |
SE7609759L (sv) | 1977-03-05 |
DE2638623B2 (de) | 1979-09-20 |
FI52040B (fr) | 1977-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |