Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809928 | Right parallelepiped cassette for tape-like recording media, and housing part thereof | Bozidar Pavelka, Dietmar Pfefferkorn, Norbert Schaeffer, Klaus-Dieter Goetz | 1989-03-07 |