Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888094 | Method of operating a headbox apparatus for a papermaking machine | Elmer Weisshuhn, Alfred Bubik, Hans Dahl, Herbert Holik, Rudiger Kurtz +3 more | 1989-12-19 |
| 4864703 | Press roll | Mario Biondetti | 1989-09-12 |
| 4858292 | Controlled deflection roll | Eugen Thomas Buhlmann, Mario Biondetti | 1989-08-22 |
| 4823690 | Roll calender with Nip relieving devices | — | 1989-04-25 |