JD

John A. Dorumsgaard

📍 Arden Hills, MN: #106 of 227 inventorsTop 50%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,341,384 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4648774 Load/unload apparatus for disc-like workpieces Roger H. Amerson 1987-03-10
4569625 Load/unload apparatus for disc-like workpieces Roger H. Amerson 1986-02-11