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Device for storage of tubulars, apparatus for handling...

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Reexamination Certificate

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Device for storing pipes

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drill gripping device and method

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Reexamination Certificate

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Drill pipe tong retaining apparatus

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drill pipe transfer arm for angle drilling

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drill rod handling device

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Reexamination Certificate

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Drill string bridge coupler and actuator

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drilling apparatus

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drilling apparatus

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drilling of wells with top drive unit

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drilling rig

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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