JM

James W. McDuffie

SP Sperry: 1 patents #30 of 162Top 20%
📍 New Holland, PA: #4 of 20 inventorsTop 20%
🗺 Pennsylvania: #570 of 2,652 inventorsTop 25%
Overall (1982): #55,866 of 81,411Top 70%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4327544 Variable speed indicator for combine Larimer J. Knepper 1982-05-04