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Chang-Wen Tsaur — 2 Patents

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2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7036191	Lower stop of zipper	—	2006-05-02
6701585	Stop device for upper stops and a pull of a nylon zipper	—	2004-03-09