Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883178 | Multiple packing for magnetic tapes wound on cores | Hartmut Thiele | 1989-11-28 |
| 4869440 | Magnetic tape cassette | Gottfried Lutz | 1989-09-26 |
| 4861086 | Apparatus for taking up and depositing spools | — | 1989-08-29 |
| 4811911 | Apparatus for winding a recording carrier onto a pair of spools | Gottfried Lutz | 1989-03-14 |
| 4805848 | Clamping device for the hubs of reels of magnetic tape | Josef Birkmann | 1989-02-21 |