DC

Donald H. Campbell

OC Occidental Chemical: 1 patents #11 of 31Top 40%
📍 Hartland, MI: #2 of 2 inventorsTop 100%
🗺 Michigan: #694 of 3,452 inventorsTop 25%
Overall (1989): #119,901 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4889773 Resistance welding of galvanized steel Gerald L. Evarts 1989-12-26