Wai Kai Wong

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Lighting device
- Patent number 7,559,663
- Issue date Jul 14, 2009
- Wai Kai Wong
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Lighting Device
- Publication number 20080186698
- Publication date Aug 7, 2008
- Wai Kai Wong
- F21 - LIGHTING