4. Wells
  5. Means for guiding insertable element laterally of well axis
  6. Secured in operative position by movable means engaging well...

Rory McCrae Tulloch

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Apparatus for milling a well casing

Wells – Means for guiding insertable element laterally of well axis – Secured in operative position by movable means engaging well...
Patent

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Bypass valve closing means

Wells – Valves – closures or changeable restrictors – Destructible element
Reexamination Certificate

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Down hole bypass valve

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

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Downhole apparatus

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid head on tool shaft having lateral port and axial...
Reexamination Certificate

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Downhole apparatus

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid head on tool shaft having lateral port and axial...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-620613

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