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Device for positioning equipment

Boring or penetrating the earth – With above-ground means to feed tool
Patent

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Diamond drill chuck jaw carrier and assembly

Boring or penetrating the earth – With above-ground means to feed tool
Patent

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Directional auger attachment

Boring or penetrating the earth – With above-ground means to feed tool
Patent

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Directional boring device

Boring or penetrating the earth – With above-ground means to feed tool
Reexamination Certificate

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Drill pipe handling

Boring or penetrating the earth – With above-ground means to feed tool
Patent

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Drill rig and construction and configuration thereof

Boring or penetrating the earth – With above-ground means to feed tool
Reexamination Certificate

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Drilling apparatus

Boring or penetrating the earth – With above-ground means to feed tool
Patent

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Drilling apparatus and support mount assembly for use therein

Boring or penetrating the earth – With above-ground means to feed tool
Patent

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Drilling apparatus with anti-vibration inertial body

Boring or penetrating the earth – With above-ground means to feed tool
Reexamination Certificate

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Drilling machine with changeable drive unit

Boring or penetrating the earth – With above-ground means to feed tool
Reexamination Certificate

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