Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616878 | Video-song accompaniment apparatus for reproducing accompaniment sound of particular instrument and method therefor | Deok-hyun Lee | 1997-04-01 |
| 5617385 | Compact disk and high-speed search method thereof and recording method appropriate therefor | Deok-hyun Lee, Gyoung-chan Park, Won J. You | 1997-04-01 |