4. Tool driving or impacting
  5. Drive control operable by hand engaging manipulating handle

Karl Roll

Inventor

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Motor-driven screwdriver

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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Pneumatically powered hand tool with speed-control governor

Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent

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Power tool

Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent

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Power tool

Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent

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Power tool with device for preventing unintentional turn-on of d

Tool driving or impacting – Drive control operable by hand engaging manipulating handle
Patent

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Profile ID: LFUS-PAI-P-211627

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