LandOfFree - US Patents - Listing for Boring or penetrating the earth,With below-ground tool drive prime mover

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Filter assembly having a bypass passageway and method

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Reexamination Certificate

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Flexible coupling for progressive cavity downhole drilling motor

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Patent

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Flexpower deep well drill

Boring or penetrating the earth – With below-ground tool drive prime mover – With below-ground conveyer or impeller for removal of cuttings

Patent

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Flow control tool

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Patent

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Flow control valve and method of controlling rotation in a...

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Reexamination Certificate

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Flow pulsing apparatus for use in drill string

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Patent

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Flow pulsing apparatus with axially movable valve

Boring or penetrating the earth – With below-ground tool drive prime mover – With mechanical motion-converting means

Patent

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Flow restricter for mud lubricated earth drilling motors

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Patent

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Flow restrictor valve for a downhole drilling assembly

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Reexamination Certificate

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Fluid actuated downhole drilling device

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Patent

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Fluid operated undercutter

Boring or penetrating the earth – With below-ground tool drive prime mover – Plural below-ground drive prime movers

Patent

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Fluid operated undercutter

Boring or penetrating the earth – With below-ground tool drive prime mover – Plural below-ground drive prime movers

Patent

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