DR

Dale Roller

📍 Dickinson, ND: #39 of 78 inventorsTop 50%
🗺 North Dakota: #1,185 of 2,395 inventorsTop 50%
Overall (All Time): #3,144,083 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8356394 Standing valve retrieval tool Kent Heinle, John Martinson 2013-01-22