4. Gear cutting, milling, or planing
  5. Broaching
  6. Means for cutting groove

Joseph W. Hoffman

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Device and method for anchoring an end of a plastic liner inside

Pipe joints or couplings – With casing – lining or protector – Lined
Patent

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Pipe grooving tool

Gear cutting – milling – or planing – Broaching – Means for cutting groove
Patent

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Profile ID: LFUS-PAI-P-1292743

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