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

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Drill and self-centering cutter insert therefor

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill apparatus having a primary drill and a pilot drill

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

Boring or penetrating the earth – Bit or bit element – With bit guide or bore wall compacting device

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

Boring or penetrating the earth – Bit or bit element – Forked rotary nontracking

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drill bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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