Willy Droz

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Hauterive, CH

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Patents Grantslast 30 patents

Information Patent Grant
Control device for an electronic wrist-watch
- Patent number 4,092,822
- Issue date Jun 6, 1978
- Ebauches S.A.
- Willy Droz
- G04 - HOROLOGY
Information Patent Grant
Circuit for electronic watches
- Patent number 4,052,842
- Issue date Oct 11, 1977
- Ebauches S.A.
- Jean-Luc Beguin
- G04 - HOROLOGY
Information Patent Grant
Control device for an electronic wrist watch
- Patent number 4,028,878
- Issue date Jun 14, 1977
- Ebauches S.A.
- Willy Droz
- G04 - HOROLOGY
Information Patent Grant
Control and correction circuit for an electronic watch
- Patent number 4,024,678
- Issue date May 24, 1977
- Ebauches S.A.
- Hubert Portmann
- G04 - HOROLOGY