Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7867304 | Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out said method | Christian Stewen | 2011-01-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7867304 | Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out said method | Christian Stewen | 2011-01-11 |