Ying Wai Chik

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Mississauga, CA

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Patents Applicationslast 30 patents

Information Patent Application
Door lock recording device
- Publication number 20090293567
- Publication date Dec 3, 2009
- Ki Sheung Yuen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Portable wireless communication system
- Publication number 20080293425
- Publication date Nov 27, 2008
- Nautic Devices Inc
- Ki Sheung Yuen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE