DH

Donald R. Hagen

RT Resistance Technology: 1 patents #1 of 2Top 50%
📍 Brooklyn Center, MN: #1 of 3 inventorsTop 35%
🗺 Minnesota: #156 of 1,035 inventorsTop 20%
Overall (1982): #68,846 of 81,411Top 85%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4329676 Potentiometer Gerald H. McDonald 1982-05-11