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Donn L. Feigal

📍 Pine Island, MN: #58 of 75 inventorsTop 80%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #4,055,931 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4398188 Ground circuit voltage detector Ronald R. Feigal 1983-08-09