4. Bearings
  5. Rotary bearing
  6. Roller drill bit

Peter Cariveau

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Dual-seal drill bit pressure communication system

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

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Dual-seal drill bit pressure communication system

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

Dual-seal drill bit pressure communication system

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

Dual-seal drill bit pressure communication system

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

Earth-boring bit having cobalt/tungsten carbide inserts

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

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Profile ID: LFUS-PAI-P-573571

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