4. Pipe joints or couplings
  5. Serial,relatively movable portions
  6. Having telescoping portion

Nehal M. Shah

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Casing patch seal

Pipe joints or couplings – Serial,relatively movable portions – Having telescoping portion
Patent

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Drilling apparatus and cutter therefor

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure
Patent

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Well string cutting apparatus

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

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Profile ID: LFUS-PAI-P-701813

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