4. Wells
  5. Means for perforating, weakening, bending or separating pipe...
  6. Perforating or splitting cutter

Ernest D. Hauk

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Airplane

Transportation – Aircraft – spacecraft – or fuselage – Propeller driven
Patent

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Annular casing hammer

Tool driving or impacting – Impacting devices – Impact transmitting anvil
Patent

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Apparatus and method for testing pipes for leaks, and seals ther

Measuring and testing – With fluid pressure – Leakage
Patent

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Casing perforator

Wells – Means for perforating – weakening – bending or separating pipe... – Perforating or splitting cutter
Patent

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High-pressure leak testing apparatus and packer

Measuring and testing – With fluid pressure – Leakage
Patent

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Profile ID: LFUS-PAI-P-358513

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