4. Tools
  5. Wrench, screwdriver, or driver therefor
  6. Handle clutched to head

Rui-Chi Shen

Inventor

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Ratchet wrench having exact limit effect

Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate

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Ratchet wrench operated conveniently

Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2896847

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