Hung Ying-Feng

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Chang Hwa Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 6,062,788
- Issue date May 16, 2000
- Yeun Chang Hardware Tool Co., Ltd.
- Hung Ying-Feng
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS