Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7111165 | Key and lock device | Inge Lidén, Rolf Norberg, Björn Magnusson, Hannu Sivonen, Gudrun Brennecke +3 more | 2006-09-19 |
| 6822552 | Key and lock device | Inge Lidén, Rolf Norberg, Björn Magnusson, Hannu Sivonen, Gudrun Brennecke +3 more | 2004-11-23 |