Ken Yamamoto

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Sakado-shi, Saitama ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Auxiliary locking mechanism for a case
- Patent number 4,714,286
- Issue date Dec 22, 1987
- Ken Yamamoto
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Locking mechanism for a case
- Patent number 4,652,029
- Issue date Mar 24, 1987
- Ken Yamamoto
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES