DR

Dennis P. Rolph

📍 Charles City, IA: #2 of 6 inventorsTop 35%
🗺 Iowa: #134 of 609 inventorsTop 25%
Overall (1994): #142,551 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5363987 Newspaper vending unit Danny E. Crawford, Gene A. Hall, Dennis A. Jendro, Danny L. Nelson, Paul D. Elst +5 more 1994-11-15