Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758502 | Coupling ring for ventilation ducts, and method of connecting ventilation ducts | Lars-åke Mattsson, Kenneth Lennartsson, Sten Högman | 2004-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758502 | Coupling ring for ventilation ducts, and method of connecting ventilation ducts | Lars-åke Mattsson, Kenneth Lennartsson, Sten Högman | 2004-07-06 |