Charles L. Croghan

UR U.S. Natural Resources: 1 patents #1 of 6Top 20%

📍 Troutdale, OR: #3 of 5 inventorsTop 60%

🗺 Oregon: #204 of 1,007 inventorsTop 25%

Overall (1994): #150,432 of 165,921Top 95%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5368077	Zero lead planer	David Johnson	1994-11-29