Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803683 | Electro-mechanical trigger switch | George Ch Fung | 2004-10-12 |
| 6785932 | Air flow modification in vacuum cleaners | — | 2004-09-07 |
| 6694631 | Alignment device utilizing components responsive to gravity | George Ch Fung | 2004-02-24 |