4. Tools
  5. Handle for tool
  6. Having storage compartment

Cheng-Tsan Hu

Inventor

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Precision screwdriver having a turning head

Tools – Handle for tool – Having storage compartment
Reexamination Certificate

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Screwdriver having a ratchet mechanism

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

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Screwdriver heads chamber for a precise screwdriver

Tools – Handle for tool – Having storage compartment
Reexamination Certificate

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Tool handle

Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Chemical
Design Patent

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Profile ID: LFUS-PAI-P-2890646

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