Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452081 | Stringed instrument finger positioning guide and method for teaching students to read music | Steven F. Ravagni, Nicholas D. Ravagni | 2002-09-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452081 | Stringed instrument finger positioning guide and method for teaching students to read music | Steven F. Ravagni, Nicholas D. Ravagni | 2002-09-17 |