RR

Rolland R. Ritter

CD Control Data: 1 patents #56 of 192Top 30%
📍 Windom, MN: #1,757 of 2,819 inventorsTop 65%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #4,036,129 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4454466 Power supply having automatically varied primary turns — 1984-06-12