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Reciprocating pump dump valve and methods of use

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

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Recloseable auxiliary valve

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

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Remote hydraulic control method and apparatus, notably for under

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

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Remotely actuated rupture disk

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

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Riserless deployment system

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

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Rotatable ball valve apparatus and method

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

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Rotational mounts for blowout preventer bonnets

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

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Rupture disc operated valves for use in drill stem testing

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

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