Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648934 | Grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner | Byung-jo Lee | 2003-11-18 |
| 6623539 | Cyclone dust collecting apparatus for a vacuum cleaner | Byung-jo Lee | 2003-09-23 |