4. Tool driving or impacting
  5. Self-acting advance and retraction cycle

P.V. Tool, Inc.

Corporate Assignee

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Drilling machine with pneumatic control

Tool driving or impacting – Means to drive tool about an axis – Gear drive
Reexamination Certificate

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Rapid advance feed drill with idle mode

Cutting by use of rotating axially moving tool – With stopping upon completion of prescribed operation
Patent

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Right angle positive feed tapper

Tool driving or impacting – Self-acting advance and retraction cycle
Patent

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Profile ID: LFUS-PAI-P-973571

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