DD

Douglas W. DeGraaf

CI Chicago Bridge & Iron: 1 patents #3 of 13Top 25%
📍 Addison, IL: #5 of 17 inventorsTop 30%
🗺 Illinois: #566 of 2,749 inventorsTop 25%
Overall (1982): #68,977 of 81,411Top 85%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4318423 External flowline across a universal joint — 1982-03-09