4. Tool driving or impacting
  5. Drive adjustable to completely change kind of drive
  6. Adjustable to impacting device

Wei-Chuan Fanchang

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Motorized driving tool

Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Patent

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Unidirectional drive tool mechanism

Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Patent

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Profile ID: LFUS-PAI-P-1094612

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