Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754306 | Microfilm reading and reverse enlarging apparatus | Josef Auer, Hubert Hackenberg, Adolf Koopmann | 1988-06-28 |
| 4601558 | Autoloading microfiche reader | Wilfried Hofmann, Andreas Holzmann, Adolf Koopmann, Ruth Meggendorfer | 1986-07-22 |
| 4564276 | Microfilm sensing device with a projection lamp and cold-light mirror | Wilfried Hofmann, Herbert Lusch, Walter Rauffer, Eberhard Zieran | 1986-01-14 |
| 4385815 | Slide projector | Hermann Muller | 1983-05-31 |
| 4309087 | Slide magazine projector | Gerrit Pahl | 1982-01-05 |
| 4198136 | Reproducing of interspersed motion-picture scenes and still shots | Frank Staudacher, Otto Stemme, Peter Lermann, Werner Went, Volkmar Stenzenberger +5 more | 1980-04-15 |
| 4194817 | Marking of interspersed motion-picture scenes and still shots with interrupt-transport markings | Frank Staudacher, Otto Stemme, Peter Lermann, Werner Went, Volkmar Stenzenberger +5 more | 1980-03-25 |