WR

William T. Rule

TM The Hanna Mining: 1 patents #1 of 5Top 20%
📍 Hibbing, MN: #1 of 5 inventorsTop 20%
🗺 Minnesota: #156 of 1,035 inventorsTop 20%
Overall (1982): #23,294 of 81,411Top 30%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4324654 Recovery of copper from copper oxide minerals — 1982-04-13