Boring or penetrating the earth
With below-ground tool drive prime mover
Fluid rotary type
Attorney
active
No affiliations
Adjustable gauge downhole drilling assembly
Command method for a steerable rotary drilling device
Drill string telemetry system and method
Drilling direction control device
Electrically insulating gap subassembly for downhole...
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Profile ID: LFUS-PAI-P-2030031