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

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Rotary drill bits

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

Patent

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Rotary drill bits

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

Patent

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Rotary drill bits

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

Patent

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Rotary drill bits

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

Patent

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Rotary drill bits

Boring or penetrating the earth – Bit or bit element – Cutting edge self-renewable during operation

Patent

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Rotary drill bits

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Rotary drill bits

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

Patent

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Rotary drill bits

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

Patent

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Rotary drill bits

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Rotary drill bits

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Rotary drill bits

Boring or penetrating the earth – Bit or bit element – Cutting edge self-renewable during operation

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Rotary drill bits and cutting elements for such bits

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

Patent

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Rotary drill bits and method of use

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

Patent

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Rotary drill bits and methods of designing such drill bits

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

Patent

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Rotary drill bits and methods of designing such drill bits

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

Patent

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Rotary drill bits employing optimal cutter placement based on ch

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

Patent

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Rotary drill bits employing tandem gage pad arrangement

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

Patent

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Rotary drill bits exhibiting cutting element placement for...

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

Reexamination Certificate

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Rotary drill bits exhibiting sequences of substantially...

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

Reexamination Certificate

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Rotary drill bits for directional drilling employing movable...

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

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