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

Boring or penetrating the earth – Bit or bit element – Axially parallel side wall with transverse cuttings...

Hand auger

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

Hard facing for milled tooth rock bits

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

Hard facing material for rock bits

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

Hard material bit

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

Hard material insert for a drill and a drill with the hard...

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

Hard metal or hard material tipped drilling, chipping and cuttin

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

Hard metal plate for rock drill and rock drill

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

Hardfaced drilling tool joints

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

Hardfacing composition for rock bits

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

Hardfacing for milled tooth drill bits

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

Hardfacing having coated ceramic particles or coated particles o

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

Hardfacing material for rock bits

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

Hardfacing material for rolling cutter drill bits

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

Hardfacing materials including PCD particles, welding rods...

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

Hardfacing on steel tooth cutter element

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

Hardfacing rock bit cones for erosion protection

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

Hardfacing with coated diamond particles

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

Hardfacing with coated diamond particles

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

Hardfacing with multiple grade layers