Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D312633 | Tape cassette | Rainer Trieschmann | 1990-12-04 |
OD
Otto Dehnke
Overall (All Time): #3,916,734 of 4,157,543Top 95%
1
Patents All Time