Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4403370 | Arrangement for cleaning band-like data carriers | — | 1983-09-13 |
| 4378610 | Device for removing impurities from data carriers | Wolfgang Ermer, Bernd Payrhammer, Alois Bauer | 1983-04-05 |
| 4364147 | Apparatus for removing particles of dust from the surfaces of flat objects | Ernst Biedermann | 1982-12-21 |
| 4240744 | Photographic copying machine with interchangeable format masks | Ernst Biedermann, Dieter Wittenbrink | 1980-12-23 |
| 4214689 | Automatic counteracting of transverse shift of a longitudinally transported strip | Siegfried Bartel, Ernst Biedermann, Martin Muller | 1980-07-29 |
| 4194836 | Photographic copying machine with carrier structure _carrying format masks to and away from the copying station | Ernst Biedermann, Siegfried Bartel | 1980-03-25 |