Uncategorized
Inventor
Country: United States Of America
Drill for sinking shafts
Drill mechanism
Tunnelling machine
No associations
LandOfFree
John Prue Karns does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with John Prue Karns, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John Prue Karns will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-501506