Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810596 | Drill level indicator | George Fung, Patrick CK Kwok, Vincent P. Cooper, Chan Ka Shing | 2004-11-02 |
| 6675911 | Coupling mechanism | — | 2004-01-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810596 | Drill level indicator | George Fung, Patrick CK Kwok, Vincent P. Cooper, Chan Ka Shing | 2004-11-02 |
| 6675911 | Coupling mechanism | — | 2004-01-13 |