DF

Donald H. Freehafer

📍 Tyrone Township, MI: #2 of 2 inventorsTop 100%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #4,057,454 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4403570 Animal waterer 1983-09-13