LandOfFree - US Patents - Listing for Boring or penetrating the earth

Selected: K

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Kelly and kelly drive bushing

Boring or penetrating the earth – Below-ground impact members – With releasable means to detachably retain telescoping...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Kelly bar having hardened flutes

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Kelly bushing guard

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Kelly drive bushing adapter

Boring or penetrating the earth – Convertible

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Kelly driver

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Kelly saver drive

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Kerf-cutting apparatus and method for improved drilling rates

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

Kerf-cutting apparatus for increased drilling rates

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

Keyed connection for 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

Keyed connection for 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

Keyseat wiper

Boring or penetrating the earth – Bit or bit element – Noncutting portion forwardly of cutting portion

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Knuckle joint spearhead core drilling apparatus

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Receiver removable through below-ground tool shaft

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Knurled drill stem

Boring or penetrating the earth – With tool shaft detail

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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