Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6802711 | Apparatus for supporting material to be treated in continuously operated thermal treatment furnaces | Taisto Yrjänä, Heikki Arffman, Risto Leinonen, Jussi Yli-Niemi | 2004-10-12 |
| 6682692 | Apparatus for supporting material to be treated in continuously operated thermal treatment furnaces | Taisto Yrjänä, Jussi Yli-Niemi | 2004-01-27 |