Karl Lai

Follow

Person

Tal Po, HK

People

Patents Applicationslast 30 patents

Information Patent Application
HIGH SECURITY COMBINATION DISC PADLOCK
- Publication number 20140331721
- Publication date Nov 13, 2014
- Karl LAI
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Security padlock having a secondary locking system
- Publication number 20080250825
- Publication date Oct 16, 2008
- Karl Lai
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES