Sha-Na Chen

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Chang Hua Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Locating structure of oil pressure door closer
- Patent number 6,032,330
- Issue date Mar 7, 2000
- Sha-Na Chen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Door closer
- Publication number 20020066157
- Publication date Jun 6, 2002
- Sha-Na Chen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES