4. Boring or penetrating the earth
  5. With above-ground means for handling drilling fluid or cutting
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Reverse circulating tool

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With tool shaft having plural passages for drilling fluid
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Reverse circulation down-the-hole drill

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With tool shaft having plural passages for drilling fluid
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drill

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rotating blowout preventor

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rotating coupling

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With valve
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rotating deck bushing with dust guard system

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rotating diverter head

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rotating head for rotary drilling rigs

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rotating subsea diverter

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid head on tool shaft having lateral port and axial...
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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