Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6607575 | Grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner | Jang-keun Oh | 2003-08-19 |
| 6599338 | Grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner | Jang-keun Oh | 2003-07-29 |