Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D475781 | Coupling ring for ventilation ducts | Lars-åke Mattsson, Sten Högman, Carl-Gustaf Sonden | 2003-06-10 |
| 6561228 | Helically wound lock seam tube | — | 2003-05-13 |
| 6513553 | Helically wound lock-seam tube | — | 2003-02-04 |