Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4709288 | Adjusting means in particular for guide elements, and magnetic tape cassette possessing such means | Norbert Schaeffer, Gunter Bettinger, Klaus-Dieter Goetz, Dietmar Pfefferkorn, Ottmar Burkle +5 more | 1987-11-24 |
| 4453683 | Magnetic tape cassette arrangements | Karl-Juergen Reimer, Dietmar Pfefferkorn, Eberhard Koester, Norbert Kreimes, Herbert Wagner +1 more | 1984-06-12 |