Wen-Sheng Chen

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Ho Mei Chen, TW

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Patents Grantslast 30 patents

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Hub clutch device for bicycle
- Patent number 7,111,719
- Issue date Sep 26, 2006
- Chosen Co., Ltd.
- Tien-Chin Sheu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...