RH

Robert K. Holdeman

📍 Ashland, OH: #84 of 159 inventorsTop 55%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,825,706 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5217609 Combination sludge collector, aerator, and return pump — 1993-06-08