HR

Harry G. Robertson

📍 Chicago, IL: #3,897 of 13,327 inventorsTop 30%
🗺 Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,664,509 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5013076 Locking plate holder for railroad bearing end caps — 1991-05-07
4483359 Pull away spill guard — 1984-11-20
4345859 Hopper discharge valve — 1982-08-24