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Reaming apparatus and method with enhanced stability and transit

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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Reaming apparatus and method with enhanced stability and transit

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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Regulator of angle and reactive moment of a gerotor type...

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...
Reexamination Certificate

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Remote controlled actuation device

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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Rotary drill bit

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

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Rotary drill bit

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

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Rotary drilling device comprising means for adjusting the azimut

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

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Rotary steerable drilling tool

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...
Reexamination Certificate

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