Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874039 | Plate heat exchanger | — | 1989-10-17 |
| 4871013 | Device to prevent through-flow of a port in a plate heat exchanger | Torgny Andersson | 1989-10-03 |
| 4848451 | Plate heat exchanger | Nils Ake Jonsson, Hans-Lennart Persson | 1989-07-18 |