Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647955 | Method of reducing scaling of heat transfer surfaces in an evaporation plant of a sulphate cellulose mill | Jukka Vaistomaa, Jouko Rikkinen, Matti Knuutila | 1997-07-15 |