B - Operations – Transporting – 63 – B
Inventor
B - Operations, Transporting
63
B
Inventor
Cementitious material and molding method therefore
Reinforced concrete boat hull and method of construction
Cementitious material and molding method therefore
Reinforced concrete boat hull and method of construction
LandOfFree
Raymond A. Duff does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Raymond A. Duff, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raymond A. Duff will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-33310