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Oil anchor

Wells – With eduction pump or plunger – Having liquid-gas separator
Reexamination Certificate

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Oil and gas production with downhole separation and...

Wells – With eduction pump or plunger – Having sediment trap or deflector
Reexamination Certificate

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Oil and gas production with downhole separation and...

Wells – With eduction pump or plunger – Having liquid-gas separator
Reexamination Certificate

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Oil pumping unit using an electrical submersible pump driven...

Wells – With eduction pump or plunger
Reexamination Certificate

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Oil pumping unit using an electrical submersible pump driven...

Wells – With eduction pump or plunger
Reexamination Certificate

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Oil separation and pumping system and apparatus

Wells – With eduction pump or plunger – With packer or plug
Reexamination Certificate

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Oil separation and pumping systems

Wells – With eduction pump or plunger – Having liquid-gas separator
Patent

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Oil well pump apparatus

Wells – With eduction pump or plunger – Having sediment trap or deflector
Reexamination Certificate

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Oil well pump apparatus

Wells – With eduction pump or plunger – Having sediment trap or deflector
Reexamination Certificate

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Oil well pumping string tubular extension for increasing oil to

Wells – With eduction pump or plunger – With packer or plug
Patent

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Open well plunger-actuated gas lift valve and method of use

Wells – With eduction pump or plunger – Receptacles
Reexamination Certificate

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