OC

Orville B. Chapman

📍 Chewelah, WA: #1 of 7 inventorsTop 15%
🗺 Washington: #48,111 of 76,902 inventorsTop 65%
Overall (All Time): #4,062,699 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4422228 Moldboard bit installing tool and method George O. Prufer 1983-12-27