Andrew Chen

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Fast-accessible socket retainer
- Patent number 6,450,338
- Issue date Sep 17, 2002
- Andrew Chen
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Multifunctional pick-up tool
- Patent number 6,315,340
- Issue date Nov 13, 2001
- Andrew Chen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES