Junwei Li

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Guangdong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Hinge without shaft and method for producing the same
- Patent number 8,307,520
- Issue date Nov 13, 2012
- Junwei Li
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
HINGE WITHOUT SHAFT AND METHOD FOR PRODUCING THE SAME
- Publication number 20110094060
- Publication date Apr 28, 2011
- Junwei Li
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...