Boring or penetrating the earth
Boring with explosion in inaccessible hole
With position orienting or indicating
Inventor
active
No associations
LandOfFree
Calvin Kessler does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Calvin Kessler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calvin Kessler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1262762