Ching-Wen Chang

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Taipei Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Remote control lock structure
- Patent number 6,813,916
- Issue date Nov 9, 2004
- Ching-Wen Chang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
REMOTE CONTROL LOCK STRUCTURE
- Publication number 20040089037
- Publication date May 13, 2004
- Ching-Wen Chang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES