Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5042740 | Pressure spring for tape cassettes and tape cassettes having said spring | Klaus Schoettle, Juergen Dreyer, Siegfried Riegger | 1991-08-27 |
WS
Willi Schuhmacher
Overall (All Time): #3,883,782 of 4,157,543Top 95%
1
Patents All Time