Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7896976 | Ventilation device for the discharge pipe of a water supply household appliance | Gerhard Graf | 2011-03-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7896976 | Ventilation device for the discharge pipe of a water supply household appliance | Gerhard Graf | 2011-03-01 |