Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802081 | Elongated phonograph pick-up head with snap-together construction | Willi Otzipka, Horst Koltermann, Gunter Zeuge | 1989-01-31 |
| 4534022 | Phonograph pick-up with improved shield grounding | — | 1985-08-06 |