Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4649422 | Method of and arrangement for determining the sharpness of originals for reproduction | Helmut Treiber, Wilhelm Nitsch | 1987-03-10 |
| 4459018 | Device for singling out non-reproducible copies fed in a photographic printer | Werner von Stein, Wolfgang Zahn | 1984-07-10 |