Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7897861 | Easy visual training templates to teach piano scale fingering sequences | Mark Lee DeLong, Barbara Louise DeLong | 2011-03-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7897861 | Easy visual training templates to teach piano scale fingering sequences | Mark Lee DeLong, Barbara Louise DeLong | 2011-03-01 |