Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4360377 | Ferromagnetic metal particles, consisting essentially of iron and carrying a surface coating, and their production | Werner Steck, Hermann Roller, Wilhelm Sarnecki | 1982-11-23 |
| 4328282 | Magnetic recording media | August Lehner, Heinrich Hartmann, Rudolf Bachmann, Albert Kohl | 1982-05-04 |
| 4310565 | Process of making a magnetic recording media | August Lehner, Heinrich Hartmann, Rudolf Bachmann, Albert Kohl, Herbert Spoor +1 more | 1982-01-12 |