Lokshun Leung

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Anti-fall device for a window sash
- Patent number 8,424,246
- Issue date Apr 23, 2013
- Lin Feng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Anti-Fall Device for a Window Sash
- Publication number 20100275516
- Publication date Nov 4, 2010
- Lokshun Leung
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES