Boring or penetrating the earth
With below-ground tool drive prime mover
Fluid rotary type
Inventor
active
Downhole drilling motor with pressure balanced bearing seals
Manufacture of diamond bearings
Powered ratchet wrench
Well drilling tool with diamond radial/thrust bearings
Well drilling tool with diamond thrust bearings
No associations
LandOfFree
Dave D. Nagel does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Dave D. Nagel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dave D. Nagel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-913303