Kwei-Chang Chien

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Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Mold seat adjusting structure of thread rolling machine
- Patent number 6,192,727
- Issue date Feb 27, 2001
- Hoxn Machinery Co., Ltd.
- Kwei-Chang Chien
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...