Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671665 | Calender for the treatment of a paper web and process for its operation | Franz Kayser, Ulrich Rothfuss, Rolf van Haag, Reinhard Wenzel | 1997-09-30 |
| 5647555 | Winding roller support device for web material | Hans-Rolf Conrad | 1997-07-15 |