DR

Duane E. Roiger

📍 Springfield, MN: #4 of 5 inventorsTop 80%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,827,124 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5222562 Cultivator attachment — 1993-06-29