LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element,Plural separable cutter elements

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Multi-sectional percussive drill bit assembly

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Percussion drill bit

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

Patent

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Percussion drill bit

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

Patent

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Percussion rock bit

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

Patent

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Reconditionable drill bit assembly

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

Patent

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Removable anti-wear insert

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

Patent

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Replaceable cutter using internal ductile metal receptacles

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

Patent

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Replaceable insert stud for drilling bits

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

Patent

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Retainer device for drill bit

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

Patent

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Rock bit with channel structure for retaining cutter segments

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

Reexamination Certificate

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Rock drill

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

Patent

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Rock drill

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

Patent

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Rock drill

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

Patent

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Rock drill bit

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

Patent

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Rock drill bit

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

Patent

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Rock drill bit

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

Patent

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Rock drill bit insert retaining sleeve assembly

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

Patent

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Rock drill bit with stress relief insert sockets

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

Patent

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Rock-drilling bit for percussion hammers

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Roof bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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