Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689703 | Positioning device for a magnetic disk memory | Otto Olbrich, Vaclav Vanek | 1987-08-25 |
| 4330910 | Device and method for smoothening surfaces of disks for disk memories | Hans-Heinrich Gatzen | 1982-05-25 |