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David P. Efraimson

📍 Rice, MN: #2 of 15 inventorsTop 15%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,059,801 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9073565 Log hauling hand truck — 2015-07-07