Po Chu Cheung

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Anti-theft zipper head
- Patent number 8,307,518
- Issue date Nov 13, 2012
- Po Chu Cheung
- A44 - HABERDASHERY JEWELLERY

Patents Applicationslast 30 patents

Information Patent Application
ANTI-THEFT ZIPPER HEAD
- Publication number 20100242236
- Publication date Sep 30, 2010
- Po Chu Cheung
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES