Boring or penetrating the earth
Bit or bit element
Magnetized or with magnet
Inventor
active
Core barrel for obtaining and retrieving subterranean formation
Cutting means for drag drill bits
Drilling stabilizer
Means to secure cutting elements on drag type drill bits
Method and core barrel apparatus for obtaining and retrieving su
No associations
LandOfFree
Charles M. Thompson does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Charles M. Thompson, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charles M. Thompson will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-612590