Yvan Greiner

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La Chaux-de-Fonds, CH

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Patents Grantslast 30 patents

Information Patent Grant
Device for measuring the operation of a timepiece movement
- Patent number 4,335,596
- Issue date Jun 22, 1982
- Portescap
- Yvan Greiner
- G01 - MEASURING TESTING
Information Patent Grant
Method of and apparatus for measuring the amplitude of oscillation...
- Patent number 4,012,941
- Issue date Mar 22, 1977
- Portescap
- Erich Jucker
- G04 - HOROLOGY