Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4566385 | Hydraulic drive for multi-color sheet-fed rotary printing machines | Hans-Jurgen Tappert, Johannes Naumann, Karl-Heinz Forster, Fritz Pieper, Werner Frenzel +1 more | 1986-01-28 |
| 4539907 | Method and device for positioning printing cylinder and ink-applying rollers in a printing machine | Hans Johne, Arndt Jentzsch, Werner Frenzel, Karl-Heinz Forster, Johannes Naumann | 1985-09-10 |
| 4438697 | Rotary sheet printing machine | — | 1984-03-27 |