Ching Song Chou

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Chuang City, TW

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Patents Applicationslast 30 patents

Information Patent Application
Method of Manufacturing Color Metal Zipper and Apparatus Therefor
- Publication number 20080000064
- Publication date Jan 3, 2008
- Ching Song Chou
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...