Boring or penetrating the earth
With means movable relative to tool or shaft to control...
Valve prevents upward flow
Inventor
active
No associations
LandOfFree
Don C. McKay does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Don C. McKay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Don C. McKay will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1230964