Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
Inventor
active
Adjustable earth boring device
Kerf-cutting apparatus for increased drilling rates
Radial rock bit seal
Rock bit cone lock and method
Rock bit loose cone indicator
No associations
LandOfFree
Roy D. Estes does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Roy D. Estes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roy D. Estes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-94189