4. Fluid handling
  5. Liquid level responsive or maintaining systems
  6. By float controlled valve

Rennie L. Dickson

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Balanced line tubing retrievable safety valve

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent

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Flapper valve assembly apparatus and method

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Linear indexing apparatus and methods of using same

Wells – Processes – Placing or shifting well part
Patent

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Linear indexing apparatus and methods of using same

Wells – Processes – Placing or shifting well part
Patent

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Lockout housing and sleeve for safety valve

Wells – Valves – closures or changeable restrictors – Fluid operated
Patent

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Profile ID: LFUS-PAI-P-211404

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