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

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Drill string valve assembly

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

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Drill tool

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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Drill tube for use in upward rock drilling

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

Patent

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Drilling apparatus

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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Drilling device for producing drill holes with an undercut

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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Drilling device for producing drill holes with undercut

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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Drilling head seal assembly

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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Drilling machine

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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Drilling or chiseling tool with suction apparatus

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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Drilling tool with a suction device

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

Reexamination Certificate

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Dry pneumatic system for hard rock shaft drilling

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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Dual bushing centralizer

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

[ 0.00 ] – not rated yet Voters 0 Comments 0

Dust control hood and dust control system

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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Dust controlling device for rock 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

[ 0.00 ] – not rated yet Voters 0 Comments 0

Dust cup

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

[ 0.00 ] – not rated yet Voters 0 Comments 0

Dust extraction for drill

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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Dust-collecting head

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

[ 0.00 ] – not rated yet Voters 0 Comments 0

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