FB

Frank S. Boxall

FS Federal Signal: 1 patents #293 of 717Top 45%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,328,515 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4804956 Rearrangeable digital signal space division switching system 1989-02-14
4203012 Hybrid circuit using current mirror circuits 1980-05-13