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

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Earth auger

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

Patent

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Earth auger drill

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

Earth auger for planting bulbs

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Patent

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Earth auger with removable cutting tooth support structure

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

Patent

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Earth bit having a wear ring

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

Reexamination Certificate

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Earth boring apparatus and method offering improved gage...

Boring or penetrating the earth – Bit or bit element – With bit guide or bore wall compacting device

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Earth boring auger

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

Patent

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Earth boring auger

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

Earth boring bit

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Earth boring bit for soft to hard formations

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

Patent

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Earth boring bit having a replaceable, threaded nozzle with wren

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Patent

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Earth boring bit with air system access

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

Patent

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Earth boring bit with bearing sleeve

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

Patent

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Earth boring bit with convergent cutter bearing

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

Patent

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Earth boring bit with eccentric seal boss

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

Earth boring bit with extended gage

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

Earth boring bit with improved rigid face seal assembly

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

Earth boring bit with improved thrust bearing

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

Earth boring bit with improved two piece bearing and seal assemb

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

Earth boring bit with labyrinth seal protector

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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