Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695136 | Refining element | Lars Obitz | 1997-12-09 |
| 5526992 | Refining element of a disc refiner | Anders Hawen, Christer Hedlund, Christer Nastren, Pertti Purolainen, Nils Virving | 1996-06-18 |
| D342745 | Refining plate | Christer Nastren | 1993-12-28 |