Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889598 | Method for detaching a web from a surface of a roll with inductive heating | — | 1989-12-26 |
| 4856155 | Method and device in an adjustable-crown roll | Martti Pullinen | 1989-08-15 |