RA

Ronald A. Aspinwall

SP Sperry: 1 patents #30 of 162Top 20%
📍 Detroit, MI: #5 of 62 inventorsTop 9%
🗺 Michigan: #416 of 1,972 inventorsTop 25%
Overall (1982): #35,763 of 81,411Top 45%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4328950 Magnetic detent for a control valve — 1982-05-11