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

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Rotary cone drill bit with integral stabilizers

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

Patent

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Rotary cone drill bit with machined cutting structure

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

Reexamination Certificate

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Rotary cone drill bit with truncated rolling cone cutters and do

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

Patent

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Rotary cone milled tooth bit with heel row cutter inserts

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

Patent

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Rotary cone rock bit and method

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

Patent

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Rotary cone type rock bits

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

Patent

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Rotary cutter assembly

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

Patent

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Rotary cutter assembly

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

Patent

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Rotary cutter drill bit with permanent snap ring cutter retentio

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

Patent

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Rotary drag bit including a central region having a...

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

Reexamination Certificate

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Rotary drill arrangement

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

Patent

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Rotary drill bit

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

Patent

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Rotary drill bit

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

Patent

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Rotary drill 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

Rotary drill 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

Rotary drill 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

Rotary drill bit and roller cutter for rock drilling

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

Patent

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Rotary drill bit having a non-rotating gauge section

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

Patent

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Rotary drill bit having a solid forged, unitary body

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

Patent

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Rotary drill bit having filling opening for the installation...

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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