RS

Richard E. Speechley

📍 Willow Grove, PA: #5 of 14 inventorsTop 40%
🗺 Pennsylvania: #570 of 2,652 inventorsTop 25%
Overall (1982): #36,034 of 81,411Top 45%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4334826 Surface aerator impeller John R. Connolly, David E. Gibson, Edward L. Heimark, Jerome B. Quinn, Richard L. Winter 1982-06-15