Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328282 | Magnetic recording media | August Lehner, Heinrich Hartmann, Rudolf Bachmann, Werner Balz | 1982-05-04 |
| 4310565 | Process of making a magnetic recording media | August Lehner, Heinrich Hartmann, Rudolf Bachmann, Herbert Spoor, Karl Mahler +1 more | 1982-01-12 |