David M. Barbera

Details David M. Barbera David M. Barbera

Boring or penetrating the earth

Cutter element laterally shiftable below ground

With shifting mechanism spring biased to operative position

Inventor

active

Affiliated with

Also associated with

No associations

Rating

David M. Barbera does not yet have a rating. At this time, there are no reviews or comments for this inventor.

If you have personal experience with David M. Barbera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and David M. Barbera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-P-2425649