Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5535527 | Method and arrangement in a multi-cylinder dryer of a paper machine | Raimo Virta | 1996-07-16 |
| 5039400 | Flotation machine | Jouko Kallioinen, Pertti V. O. Koivistoinen | 1991-08-13 |
| 4882011 | Device for generating negative pressure inside a mantle of a revolving roll | Pekka Eskelinen, Vesa Vuorinen | 1989-11-21 |