JR

James E. Rookus

📍 Grand Rapids, MI: #1,022 of 1,824 inventorsTop 60%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #4,099,970 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4299063 Sharpener for screens of circular blades — 1981-11-10