Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346666 | Apparatus and method for practice and evaluation of musical performance of chords | Tom Jen Tsai | 2002-02-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346666 | Apparatus and method for practice and evaluation of musical performance of chords | Tom Jen Tsai | 2002-02-12 |