LandOfFree - US Patents - Listing for Boring or penetrating the earth,Means traveling with tool to constrain tool to bore along...

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Angle adjustment sub

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft

Patent

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Anti-rotation device for a steerable rotary drilling device

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Axially spaced opposed bore wall engaging guides

Reexamination Certificate

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Apparatus and method for directional drilling of holes

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Reexamination Certificate

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Apparatus for controlling relative rotation of a drilling tool i

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Patent

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Apparatus for directional drilling

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Axially spaced opposed bore wall engaging guides

Patent

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Apparatus for directional drilling

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Reexamination Certificate

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Apparatus for directional drilling and the like of subterranean

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Patent

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Apparatus for directional drilling of subterranean wells

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Sectional guide or shaft having means to lock sections in...

Patent

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Apparatus for directional drilling of subterranean wells

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Sectional guide or shaft having means to lock sections in...

Patent

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Apparatus for drilling curved sections of well holes

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Patent

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Apparatus for drilling straight portion of a deviated hole

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft

Patent

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Apparatus for drilling underground arcuate paths and installing

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Patent

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Apparatus for excavating a substantially vertical slot

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Patent

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Apparatus for extended straight line drilling from a curved bore

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft

Patent

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Apparatus for forming boreholes

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft

Patent

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Apparatus for lateral drilling in oil and gas wells

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Patent

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Apparatus for optional straight or directional drilling undergro

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft

Patent

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Apparatus for optional straight or directional drilling undergro

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft

Patent

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Apparatus for steering the foremost part of the drillpipe

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Sectional guide or shaft having means to lock sections in...

Patent

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Arrangement for guiding a bore-crown or bit along a given path

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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