Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7293324 | Vacuum cleaner with level control | Sai Kei Wong, Kam Hoi Ma, Simon P. Griffiths | 2007-11-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7293324 | Vacuum cleaner with level control | Sai Kei Wong, Kam Hoi Ma, Simon P. Griffiths | 2007-11-13 |