Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5984632 | Motor fan for a cleaning apparatus | Nam Seon Lee, Jong-Soo Choi | 1999-11-16 |
| 5874683 | Characteristic comparative measurement system of motor fan in vacuum cleaner | Nam Seon Lee, Jong-Soo Choi | 1999-02-23 |