| 5064721 |
Magnetic recording media |
August Lehner, Hermann Roller, Werner Lenz, Ludwig Kreitner, Helmut Kopke +2 more |
1991-11-12 |
| 4895764 |
Magnetic recording media |
August Lehner, Michael Bobrich, Hermann Roller, Peter Richter, Werner Lenz +2 more |
1990-01-23 |
| 4842896 |
Production of magnetic recording media |
Werner Grau, Jenoe Kovacs, Werner Balz, Wulf Muenzer |
1989-06-27 |
| 4673591 |
Production of layer-type magnetic recording media |
August Lehner, Guenter Heil, Werner Lenz, Werner Balz, Gunnar Schornick |
1987-06-16 |
| 4671969 |
Production of layer-type magnetic recording media |
August Lehner, Werner Balz, Werner Lenz, Guenter Heil |
1987-06-09 |
| 4668586 |
Magnetic recording media |
Milena Melzer, August Lehner, Norbert Schneider, Eberhard Koester, Werner Balz +2 more |
1987-05-26 |
| 4656093 |
Magnetic recording media |
August Lehner, Hermann Roller, Werner Balz, Eerhard Koester, Friedrich Sommermann |
1987-04-07 |
| 4647513 |
Magnetic recording media |
August Lehner, Werner Balz, Friedrich Sommermann, Milan Velic, Werner Grau +1 more |
1987-03-03 |
| 4507457 |
Production of magnetic recording media |
Norbert Schneider, Gregor Ley, Werner Balz, Milena Melzer, Helmut Jakusch |
1985-03-26 |
| 4472455 |
Production of magnetic recording media |
Werner Balz, Milena Melzer, Norbert Schneider, Eberhard Koester, August Lehner |
1984-09-18 |
| 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 |
