CH

Charles F. Hinnenkamp

📍 Melrose, MN: #4 of 7 inventorsTop 60%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,961,924 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4781149 Prefabricated cattle stall — 1988-11-01