cheng jung Chen

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Luhgaang Town, Janghuah Shiann, TW

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Patents Grantslast 30 patents

Information Patent Grant
Combination padlock
- Patent number 6,381,997
- Issue date May 7, 2002
- Cheng Jung Chen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Combination lock
- Patent number 5,782,113
- Issue date Jul 21, 1998
- Cheng Jung Chen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Combination lock having a shackle
- Patent number 5,560,232
- Issue date Oct 1, 1996
- cheng jung Chen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES