Static structures (e.g., buildings)
Inclined top cover
On existing roof
Inventor
active
Dormer structure and method
Dormer structure and method
Modular building structure and method
Residential building construction
Single story house addition structure and method
No associations
LandOfFree
Robert Helfman does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Robert Helfman, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robert Helfman will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-882564