Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865891 | Hollow profile with a surface layer | — | 1989-09-12 |
| 4850503 | Closure device for a packaging container | — | 1989-07-25 |
| 4852136 | Method and device for tightness control of a joint | Bo Ullman, Håkan Ohlsson | 1989-07-25 |
| 4813208 | Method and device for scrap-free manufacture of coated profiles and thermoformed containers | Lars-Erik Piltz | 1989-03-21 |