Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874085 | Storage cassette for high storage density, disc-shaped information carriers | Hermann Grobecker, Werner Heher, Frederik B. Nusselder | 1989-10-17 |
| 4409169 | Method for manufacturing disk-shaped information carriers | Dieter Bartholdsten, Hermann Koop, Erhard Schrode | 1983-10-11 |