Shigemitsu Shimoyama

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Ageo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Circular door operating method and apparatus
- Patent number 4,785,579
- Issue date Nov 22, 1988
- Nippon Air Brake Co., Ltd.
- Kiyoaki Sugiyama
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES