Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
Inventor
active
Chip relief for rock bits
Chip relief for rock bits
No associations
LandOfFree
J. Randall Coates does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with J. Randall Coates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and J. Randall Coates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1769363