4. Tools
  5. Wrench, screwdriver, or driver therefor
  6. Pivoted outer jaw

Chen Wei

Inventor

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Adjustable rachet-style self-tightening wrench

Tools – Wrench – screwdriver – or driver therefor – Pivoted outer jaw
Patent

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Automatically adjusting self-tightening wrench

Tools – Wrench – screwdriver – or driver therefor – Pivoted outer jaw
Reexamination Certificate

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Chair footring

Design Patent

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Profile ID: LFUS-PAI-P-1886684

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