Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D474387 | Keyless drill chuck | Daniel Alex Chunn, Meily Siu Mei Chan | 2003-05-13 |
| D472443 | Keyless drill chuck | Daniel Alex Chunn, Meily Siu Mei Chan | 2003-04-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D474387 | Keyless drill chuck | Daniel Alex Chunn, Meily Siu Mei Chan | 2003-05-13 |
| D472443 | Keyless drill chuck | Daniel Alex Chunn, Meily Siu Mei Chan | 2003-04-01 |