Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987550 | Method of determining the degree of filling of the dust collector of a vacuum cleaner and filling indicator | — | 2011-08-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987550 | Method of determining the degree of filling of the dust collector of a vacuum cleaner and filling indicator | — | 2011-08-02 |