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JPS51139359A - Device of correcting the expansion or contraction of the hairspring of timekeeping devices - Google Patents

Device of correcting the expansion or contraction of the hairspring of timekeeping devices

Info

Publication number
JPS51139359A
JPS51139359A JP6385875A JP6385875A JPS51139359A JP S51139359 A JPS51139359 A JP S51139359A JP 6385875 A JP6385875 A JP 6385875A JP 6385875 A JP6385875 A JP 6385875A JP S51139359 A JPS51139359 A JP S51139359A
Authority
JP
Japan
Prior art keywords
hairspring
contraction
expansion
correcting
timekeeping devices
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.)
Pending
Application number
JP6385875A
Other languages
Japanese (ja)
Inventor
Sentaro Fujimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP6385875A priority Critical patent/JPS51139359A/en
Publication of JPS51139359A publication Critical patent/JPS51139359A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To compensate the expansion or contraction of the hairspring of timekeeping devices caused by temperature.
COPYRIGHT: (C)1976,JPO&Japio
JP6385875A 1975-05-27 1975-05-27 Device of correcting the expansion or contraction of the hairspring of timekeeping devices Pending JPS51139359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6385875A JPS51139359A (en) 1975-05-27 1975-05-27 Device of correcting the expansion or contraction of the hairspring of timekeeping devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6385875A JPS51139359A (en) 1975-05-27 1975-05-27 Device of correcting the expansion or contraction of the hairspring of timekeeping devices

Publications (1)

Publication Number Publication Date
JPS51139359A true JPS51139359A (en) 1976-12-01

Family

ID=13241443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6385875A Pending JPS51139359A (en) 1975-05-27 1975-05-27 Device of correcting the expansion or contraction of the hairspring of timekeeping devices

Country Status (1)

Country Link
JP (1) JPS51139359A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2365403A3 (en) * 2010-03-12 2014-10-22 Micro Techne Research & Development Center Ltd. An oscillator system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2365403A3 (en) * 2010-03-12 2014-10-22 Micro Techne Research & Development Center Ltd. An oscillator system

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