RD

Ralph F. DeTray

📍 Defiance, OH: #25 of 68 inventorsTop 40%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,997,260 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4595146 Granular and powdered material feeder/applicator James E. Murphy 1986-06-17