Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848229 | Printing plate fastening and tensioning assembly | Georg Schneider | 1989-07-18 |
| 4833984 | Impression cylinder surface for perfecting press | Hans Berhard Bolza-Schunemann | 1989-05-30 |