DB

D. Robert Du Be

3M: 1 patents #7,233 of 11,543Top 65%
📍 Windom, MN: #1,757 of 2,819 inventorsTop 65%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,999,033 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4601661 Dental mandrel and detachable abrasive disk Lawrence A. May 1986-07-22