Jacques Froidevaux

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La Chaux-de-Fonds, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method of controlling the condition of an electric battery and appa...
- Patent number 4,204,162
- Issue date May 20, 1980
- Electronic Time Company ETIC S.A.
- Jacques H. Froidevaux
- G01 - MEASURING TESTING
Information Patent Grant
Method for measuring the rate or the frequency error of a quartz ti...
- Patent number 4,201,077
- Issue date May 6, 1980
- Electronic Time Company ETIC S.A.
- Jacques Froidevaux
- G04 - HOROLOGY