Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6029571 | Dampening-unit roller of a printing machine | Gerhard Johner, Jürgen Kern | 2000-02-29 |
| 5647279 | Printing machine roller and method of production thereof | Gerhard Johner, Juergen Kern | 1997-07-15 |