Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484355 | Passage system of vacuum cleaner | Seong Bin Lee, Sung Il Park | 2002-11-26 |
SC
Seong Ho Cho
Overall (2002): #120,749 of 266,432Top 50%
1
Patents 2002