Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479150 | Methods and arrangements for changing the audio information in an audio/video recording/reproduction system | Andreas Ilmer | 1984-10-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479150 | Methods and arrangements for changing the audio information in an audio/video recording/reproduction system | Andreas Ilmer | 1984-10-23 |