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Apparatus and method for coring and/or drilling

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Reexamination Certificate

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Apparatus and method for drilling with casing

Boring or penetrating the earth – Boring without earth removal – Drive point detached from shaft to form cased bore or with...
Reexamination Certificate

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Apparatus and method for obtaining a core at in situ pressure

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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Apparatus and method for obtaining subterranean samples

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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Apparatus and method for steering a pipe jacking head

Boring or penetrating the earth – Boring without earth removal
Patent

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Apparatus and method for underground sampling

Boring or penetrating the earth – Boring without earth removal – Fluid passage to exterior of drive point
Patent

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Apparatus and method to drill and lift core-drilled...

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Reexamination Certificate

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Apparatus for controlling a ramming device

Boring or penetrating the earth – Boring without earth removal
Patent

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Apparatus for directional drilling

Boring or penetrating the earth – Boring without earth removal
Reexamination Certificate

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Apparatus for extracting subterranean gas samples

Boring or penetrating the earth – Boring without earth removal – Fluid passage to exterior of drive point
Patent

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Apparatus for hard rock sidewall coring a borehole

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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Apparatus for improving impact tool lubrication

Boring or penetrating the earth – Boring without earth removal – Fluid passage to exterior of drive point
Patent

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Apparatus for making earth bores

Boring or penetrating the earth – Boring without earth removal – Drive point detached from shaft to form cased bore or with...
Patent

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Apparatus for making holes in soil

Boring or penetrating the earth – Boring without earth removal
Patent

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Apparatus for making underground passages

Boring or penetrating the earth – Boring without earth removal
Patent

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Apparatus for obtaining a soil core sample

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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Apparatus for obtaining a soil core sample

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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Apparatus for recovering ground soil samples

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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Apparatus for sinking wells in the ground

Boring or penetrating the earth – Boring without earth removal
Patent

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Assembly and method for extracting discrete soil samples

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent

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