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

Toshiro Hirayama

Inventor

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Portable electric drill

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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Power tool

Tool driving or impacting – Impacting devices – Hammer head driven by pulsating fluid pressure
Reexamination Certificate

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Power-driven hammer drill having an improved operating mode...

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

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Profile ID: LFUS-PAI-P-2031396

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