RJ

Ralph H. Drew, Jr.

📍 Dayton, OH: #15 of 111 inventorsTop 15%
🗺 Ohio: #490 of 2,550 inventorsTop 20%
Overall (1982): #37,828 of 81,411Top 50%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4351355 Drain valve Floyd G. Koller 1982-09-28