RR

Ralph H. Ringstad

AS Automatic Switch: 1 patents #40 of 74Top 55%
Overall (All Time): #4,058,109 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4405867 System for transferring a load between two power sources without interruption of power to the load William A. Moakler 1983-09-20