Tzu-Chi Chen

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Taoyuan County, TW

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Patents Applicationslast 30 patents

Information Patent Application
Manufacturing Method of Waterproof Coil Zipper
- Publication number 20140130974
- Publication date May 15, 2014
- UNITECH ZIPPER & MACHINERY CO., LTD.
- Tzu-Chi Chen
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC