RF

Robert F. Fredrick

DS De La Rue Cash Systems: 1 patents #4 of 11Top 40%
📍 Watertown, WI: #4 of 12 inventorsTop 35%
🗺 Wisconsin: #903 of 3,183 inventorsTop 30%
Overall (2003): #131,298 of 273,478Top 50%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6640956 Method of coin detection and bag stopping for a coin sorter Robert L. Zwieg, John P. Grajewski, John A. Kressin, Thomas S. Murphy, Jon R. Stieber 2003-11-04