4. Boring or penetrating the earth
  5. With below-ground tool drive prime mover
  6. Fluid rotary type

John P. Boyce

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Lockable motor assembly for use in a well bore

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate

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Lockable motor assembly for use in a well bore

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-2627132

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