RB

Raymond M. Ballard

EA E.I. Du Pont De Nemours And: 1 patents #116 of 563Top 25%
🗺 Ohio: #715 of 3,574 inventorsTop 25%
Overall (1989): #68,130 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4850545 Apparatus for winding film Albert W. Forrest, Jr. 1989-07-25