RJ

Ralph Derr, Jr.

GM Gulf Eastern Manufacturing: 1 patents #28 of 102Top 30%
📍 Downingtown, PA: #308 of 472 inventorsTop 70%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,027,399 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4423991 Cam activated planetary turning machine — 1984-01-03