Erich Walker

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Orvin, CH

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Patents Grantslast 30 patents

Information Patent Grant
Gear train for analog display timepiece
- Patent number 4,308,610
- Issue date Dec 29, 1981
- Bulova Watch Company, Inc.
- Erich Walker
- G04 - HOROLOGY
Information Patent Grant
Standardized electronic watch movement
- Patent number 4,264,969
- Issue date Apr 28, 1981
- Bulova Watch Company, Inc.
- Erich Walker
- G04 - HOROLOGY
Information Patent Grant
Casing ring for watch movement
- Patent number 4,117,660
- Issue date Oct 3, 1978
- Bulova Watch Company, Inc.
- Erich Walker
- G04 - HOROLOGY