Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6083009 | Karaoke service method and system by telecommunication system | Sang Lee, Sang Cheol Han, Hun-Bum Ha | 2000-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6083009 | Karaoke service method and system by telecommunication system | Sang Lee, Sang Cheol Han, Hun-Bum Ha | 2000-07-04 |