Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4307779 | Plate heat exchanger | Hans Johansson, Dag Rynell, Malte Skoog, Nils Stadmark | 1981-12-29 |
| 4301864 | Plate heat exchanger | Toivelemb Kivikas, Dag Rynell, Malte Skoog | 1981-11-24 |