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William J. Roper

📍 Englewood, CO: #476 of 810 inventorsTop 60%
🗺 Colorado: #24,093 of 40,980 inventorsTop 60%
Overall (All Time): #3,762,152 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5381861 Drive head for flexible conveyor fluid lifting system James W. Crafton, Ronald J. Stene, Thomas Shilling 1995-01-17