GB

Gustav G. A. Bolin

Overall (All Time): #2,345,117 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4700396 Sound-wave receiving appliance — 1987-10-13
4593404 Method of improving the acoustics of a hall — 1986-06-03