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

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

Roof bit and insert assembly

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

Roof bit body and insert assembly

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Roof bit carbide blade

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Roof bolt bit

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

Roof drill bit

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

Roof drill bit

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

Roof drill bit

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Roof drill bit tip

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

Roof drill bit with hexagonal body portion

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

Roof drill bit with radial domed PCD inserts

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

Roof drill bit, roof drill bit body and hard cutting insert...

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

Roof drill brazing shim

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

Roof drilling system improvements

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

Roof drilling system improvements

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

Rotary abrasive drilling bit

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

Rotary air percussion bit

Boring or penetrating the earth – Bit or bit element – Core forming type

Rotary bit with an indenting member

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

Rotary bit with gageless waist

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

Rotary bit with jet nozzles