Kenichi Yamada

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Safety fence for a hatch formed in a slab
- Patent number 6,050,032
- Issue date Apr 18, 2000
- Anandenki Co., Ltd.
- Kenichi Yamada
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES