4. Radiant energy
  5. Geological testing or irradiation
  6. With drill or drilling

Nathan Nelson

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Accessible downhole power assembly

Boring or penetrating the earth – With tool shaft detail
Reexamination Certificate

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Downhole drive shaft connection

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Reexamination Certificate

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Downhole nuclear tool

Radiant energy – Geological testing or irradiation – With drill or drilling
Reexamination Certificate

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Downhole turbine

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type
Reexamination Certificate

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Downhole turbine

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2187082

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