LandOfFree - US Patents - Listing for Boring or penetrating the earth,With above-ground means for handling drilling fluid or cutting

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Suction drill unit for dowel anchorage in rock

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With suction pump inlet communicating with bore bottom

Reexamination Certificate

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Suction tool

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With suction pump inlet communicating with bore bottom

Reexamination Certificate

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Surge device for air drilling

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...

Reexamination Certificate

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Swivel chamber for water actuated wireline drills

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid head on tool shaft having lateral port and axial...

Patent

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System for adapting top head drilling rigs for reverse circulati

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With tool shaft having plural passages for drilling fluid

Patent

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Total recovery drill

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With suction pump inlet communicating with bore bottom

Patent

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Underground mining system

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With suction pump inlet communicating with bore bottom

Patent

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Valve method for drilling with casing using pressurized...

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With valve

Reexamination Certificate

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Washpipe seal

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting

Reexamination Certificate

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Water and dust collector for wet core drilling

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...

Patent

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Water collecting device for core drilling device

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Water pressure post-hole digger

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

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