4. Pipe joints or couplings
  5. Particular interface
  6. Tapered

Grant Prideco, LP

Corporate Assignee

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Casing drilling connector with low stress flex groove

Pipe joints or couplings – Particular interface – Tapered
Reexamination Certificate

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External refacing indicator for a tool joint

Pipe joints or couplings – Particular interface – Tapered
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2521924

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