Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D461887 | Coupling ring for ventilation ducts | Lars-åke Mattsson, Kenneth Lennartsson, Sten Högman | 2002-08-20 |
| D456071 | Coupling ring for ventilation ducts | Lars-åke Mattsson, Kenneth Lennartsson, Sten Högman | 2002-04-23 |
| D456072 | Coupling ring for ventilation ducts | Lars-åke Mattsson, Kenneth Lennartsson, Sten Högman | 2002-04-23 |
| D454949 | Coupling ring for ventilation ducts | Lars-åke Mattsson, Kenneth Lennartsson, Sten Högman | 2002-03-26 |
| D453042 | Coupling ring for ventilation ducts | Lars-åke Mattsson, Kenneth Lennartsson, Sten Högman | 2002-01-22 |