4. Wells
  5. Above ground apparatus
  6. Having retractable pipe section to allow closing of gate...

Robert L. Heinonen

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Blowout preventer

Valves and valve actuation – Blow-out preventers
Patent

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Guide for well pump sucker rod

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent

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Method of and apparatus for securing capillary tubing in a...

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Misaligning wellhead system

Wells – Above ground apparatus – With assembly or disassembly means
Patent

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Well leak catcher

Wells – Above ground apparatus – Fluid catcher around pipe coupling
Patent

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Profile ID: LFUS-PAI-P-108367

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