Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876763 | Vacuum cleaner | Hae-Suk Cho | 1989-10-31 |
IK
In K. Kwon
Overall (1989): #102,354 of 140,708Top 75%
1
Patents 1989