Tsung-Wen Shea

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Mechanism for controlling the raising and lowering of a door
- Patent number 5,386,891
- Issue date Feb 7, 1995
- Anchuan Corporation
- Tsung-Wen Shea
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Mechanism for controlling the raising and lowering of a door
- Patent number 5,203,392
- Issue date Apr 20, 1993
- Anchuan Corporation
- Tsung-Wen Shea
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES