DR

Dale M. Ruhling

📍 Vanderbilt, MI: #5 of 7 inventorsTop 75%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,675,014 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5712919 Hearing aid apparatus powered by capacitor — 1998-01-27