Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671665 | Calender for the treatment of a paper web and process for its operation | Ulrich Rothfuss, Rolf van Haag, Reinhard Wenzel, Dieter Junk | 1997-09-30 |
| 5669295 | Calender for treating both sides of a paper web | Rolf van Haag, Ulrich Rothfuss | 1997-09-23 |
| 5655442 | Calender for the treatment of a paper web | Hans-Rolf Conrad | 1997-08-12 |
| 5655444 | Calender for webs of paper | Rolf van Haag | 1997-08-12 |