DD

Douglas Edward DeVries

SS Schafer Systems: 1 patents #1 of 5Top 20%
📍 Johnston, IA: #8 of 23 inventorsTop 35%
🗺 Iowa: #238 of 1,020 inventorsTop 25%
Overall (2005): #210,608 of 245,428Top 90%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6871755 Ticket counting dispenser Trevor E. Meyer, Kevin A. Jankowski, Daniel J. Fahrion, Scott A. Bottorf 2005-03-29