CD

Charles L. Duncan

📍 Lewistown, IL: #5 of 5 inventorsTop 100%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,821,884 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5203127 Earth anchor John R. Olthoff, Wayne Nichols, Rick A. Harmon 1993-04-20