HS

Harold S. Simpson

HS Harold Simpson: 1 patents #4 of 6Top 70%
Overall (All Time): #3,983,818 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4700522 Standing seam sidelap system and method for assembling same — 1987-10-20