Kou-Chi Shen

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Locking device operated by both of the mechanical and magnetic effects
- Patent number 6,792,779
- Issue date Sep 21, 2004
- Kou-Chi Shen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Card type locking apparatus
- Patent number 5,212,974
- Issue date May 25, 1993
- Kou-Chi Shen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES