Boring or penetrating the earth
With below-ground tool drive prime mover
Fluid rotary type
Inventor
active
Articulated coupling
Hinge joint for a screw planetary hydraulic drill
Overflow valve of drill string
Rotor of a screw hydraulic downhole motor, method for its produc
Working member of a helical downhole motor for drilling wells
No associations
LandOfFree
Vladimir B. Goldobin does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Vladimir B. Goldobin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vladimir B. Goldobin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-993309