Da-Jeng Yao

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Hsin Tien City, Taipei Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Torque-indicating wrench
- Patent number 6,948,380
- Issue date Sep 27, 2005
- Stand Tools Enterprise Co., Ltd.
- Hsuan-Sen Shiao
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Torque-indicating wrench
- Patent number 6,928,885
- Issue date Aug 16, 2005
- Hsuan-Sen Shiao
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS