FS

Frank Swinehart

EJ E.F. Johnson: 1 patents #38 of 54Top 75%
📍 Waseca, MN: #51 of 80 inventorsTop 65%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #4,023,967 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4550361 Adjustable multiturn air dielectric capacitor — 1985-10-29