SB

Sigmund A. Birkeland

Overall (All Time): #2,590,342 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11683644 Active noise cancellation system for helmets Dag Axel Aarset LOE 2023-06-20