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

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

Drill head

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore

Drill head assembly

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

Drill rod and drill bit with rocking connection

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

Drill rod and method for its manufacturer

Boring or penetrating the earth – Bit or bit element – Casing shoe type

Drill shoe

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

Drill shoe

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

Drill tool for deep wells

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

Drill with polycrystalline diamond drill blanks for soft, medium

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

Drill-bit with full offset cutter bodies

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore

Drilling and anchoring device for diverse applications

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore

Drilling and/or chiseling tool

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Drilling and/or chiseling tool

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

Drilling and/or coring tool

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

Drilling apparatus

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

Drilling apparatus an excavation bit

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

Drilling apparatus of the cutting and shearing type

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

Drilling assembly and method for drilling a barehole into...

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

Drilling bit

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

Drilling bit