Road structure, process, or apparatus
Pavement
Vault cover-closure
Inventor
active
Lift-assisted manhole cover
Lift-assisted manhole cover
No associations
LandOfFree
Herbert Carl Barnum does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Herbert Carl Barnum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Herbert Carl Barnum will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-3130261