Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12223930 | Spiral curve type music sheet, apparatus and method for providing spiral curve type music sheet | Kijoon Lee, Han Gyeol Woo, Jae Hyuk Lee, Hye Jun Lee, Ji-Ho Jang +1 more | 2025-02-11 |