Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592558 | Sound reproduction device | Harri Valio | 1997-01-07 |
FS
Friedbert Stuhlfelner
Overall (1997): #151,693 of 185,788Top 85%
1
Patents 1997