4. Pipe joints or couplings
  5. With leakage or drip disposal
  6. Weep holes

John Regan

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Blowout preventer

Valves and valve actuation – Blow-out preventers
Patent

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Equally tensioned coupling apparatus

Pipe joints or couplings – With leakage or drip disposal – Weep holes
Patent

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Keying means for segmented end ring blowout preventer

Valves and valve actuation – Blow-out preventers
Patent

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Profile ID: LFUS-PAI-P-766823

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