DR

D. J. Rapp

TI Tdj Incorporated: 1 patents #5 of 5Top 100%
📍 Dubuque, IA: #10 of 26 inventorsTop 40%
🗺 Iowa: #89 of 549 inventorsTop 20%
Overall (1989): #124,151 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4878944 Method of treating metallic oxide impregnated dust Thomas E. Rolle 1989-11-07