4. Tool driving or impacting
  5. Impacting devices
  6. With anvil arranged to transmit torsional impact to tool

Carl W. Risen, Jr.

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Bit for cutting drywall

Cutting by use of rotating axially moving tool – Tool or tool with support
Reexamination Certificate

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Precision drill bits

Cutting by use of rotating axially moving tool – Tool or tool with support – Having stepped cutting edges
Reexamination Certificate

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Screw holding and driving device

Tool driving or impacting – Impacting devices – With anvil arranged to transmit torsional impact to tool
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2641771

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