Uncategorized
Inventor
Draft gear combining helical springs, rubber springs, and...
Draft gear with supplemental resistance mechanism
Friction draft gear
Graft copolymer
High capacity draft gear
LandOfFree
David S. Campbell 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 S. Campbell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and David S. Campbell will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-175712