Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484354 | Air circulation type vacuum cleaner | — | 2002-11-26 |
| 6484355 | Passage system of vacuum cleaner | Seong Ho Cho, Sung Il Park | 2002-11-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484354 | Air circulation type vacuum cleaner | — | 2002-11-26 |
| 6484355 | Passage system of vacuum cleaner | Seong Ho Cho, Sung Il Park | 2002-11-26 |