RD

Robert W. Dunham

SD Square D: 1 patents #408 of 756Top 55%
📍 Cedar Rapids, IA: #843 of 1,358 inventorsTop 65%
🗺 Iowa: #8,735 of 15,303 inventorsTop 60%
Overall (All Time): #4,114,175 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4208689 Circuit breaker having an electronic fault sensing and trip initiating unit James P. McGinnis, Henry J. Zylstra 1980-06-17