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Abradable cutter protection

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

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Apparatus for retrieving metal debris from a well bore

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

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Apparatus for retrieving metal objects from a wellbore

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

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Apparatus for retrieving metal objects from a wellbore

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

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Bit design for a rotating bit incorporating synthetic polycrysta

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

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Cemented carbide tool

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

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Composite tool comprising a polycrystalline diamond active part

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

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Convex shaped diamond cutting elements

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

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Cutter assemblies for rotary drill bits

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

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Cutter assemblies for rotary drill bits, and method of manufactu

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

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Cutter configuration for a gage-to-shoulder transition and face

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

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Cutter element and cutter for rock drilling

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

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Cutter head, drill bit and similar drilling tools

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

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Cutter with cutter holder for disintegrating of material, partic

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

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Cutting blank with diamond strips in grooves

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

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Cutting component

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

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Cutting element adapted to be pushed into a recess of a drill bi

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

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Cutting element having a stud and cutting disk bonded thereto

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

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Cutting element having diamond cutting blank reinforced by a sho

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

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Cutting elements for rotary drill bits

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

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