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

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

Roller cutter

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

Roller cutter assembly having adjustable ring cutter spacing

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

Roller cutter drill bit

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

Roller cutter mount for tunneling machine

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

Roller cutter mounts

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

Roller cutter with a tilted journal

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

Roller cutter with major and minor insert rows

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

Roller drill bit having radial-thrust pilot bushing incorporatin

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

Roller reamer

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

Roller reamer apparatus

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

Roller reamer with rotatably positioned bearing block

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

Roller reamer/stabilizer

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

Roller-reamer

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

Roller-type rock bit and bearing arrangement therefor

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

Rolling cone bit having gage and nestled gage cutter elements ha

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

Rolling cone bit with elements fanned along the gage curve

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

Rolling cone bit with enhancements in cutter element placement a

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

Rolling cone bit with gage and off-gage cutter elements...

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

Rolling cone bit with gage and off-gage cutter elements...