RH

Robert E. Heckelsberg

AI Amca International: 6 patents #1 of 63Top 2%
Overall (All Time): #893,196 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
RE33566 Roofing structure — 1991-04-09
RE33563 Metal panel roofing structure — 1991-04-02
4296581 Roofing structure — 1981-10-27
4224775 Building panel — 1980-09-30
4213282 Metal panel roofing structure — 1980-07-22
4193247 Panel mounting clip — 1980-03-18