SF

Siegfried Adam Feil

RO Rockford: 1 patents #17 of 33Top 55%
📍 Aglasterhausen, DE: #3 of 8 inventorsTop 40%
Overall (All Time): #3,533,310 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D484494 Audio speaker cone Lothar Karl Staudt 2003-12-30