DJ

Delmar R. Johnson

BH Bell And Howell: 1 patents #7 of 40Top 20%
📍 Barrington, IL: #12 of 42 inventorsTop 30%
🗺 Illinois: #566 of 2,749 inventorsTop 25%
Overall (1982): #69,570 of 81,411Top 90%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4324484 Microfilm filing system — 1982-04-13