LandOfFree - US Patents - Listing for Boring or penetrating the earth,Cutter element laterally shiftable below ground,Cutter element shifted by fluid pressure

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Under-reaming tool for boreholes

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer and method of use

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Reexamination Certificate

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Underreamer with cylindrical boss and socket hinge assembly for

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer with debris flushing flow path

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer with large cutter elements and axial fluid passage

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer with ported cam sleeve upper extension

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer with revolving diamond cutter elements

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreamer with turbulence cleaning mechanism

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Underreaming rotary drill

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Reexamination Certificate

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Well bore enlarger

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Well reamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Wellbore cutting tool

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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Wellbore section milling

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Patent

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