LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element

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Excavating tooth for an earth auger

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Excavation bit for a drilling apparatus

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Excavation tool

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Excavation tool

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Expandable apparatus for drift and reaming borehole

Boring or penetrating the earth – Bit or bit element – Casing shoe type

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Expandable raise bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Expandable rock bit

Boring or penetrating the earth – Bit or bit element – Adjustable cutter element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Expanded coverage carbide compact

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Expendable diamond drag bit

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Expendable diamond drag bit

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Extended drill bit nozzle having extended retainer

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Extended drill bit nozzle having side discharge ports

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Extended nozzle and bit stabilizer and method of producing

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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