Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5153388 | Sound insulating element having absorption properties for partition walls | Klaus Wittenmayer | 1992-10-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5153388 | Sound insulating element having absorption properties for partition walls | Klaus Wittenmayer | 1992-10-06 |