Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441399 | Interactive device for teaching musical tones or melodies | Richard H. Wiggins, George R. Doddington | 1984-04-10 |
| 4439161 | Taught learning aid | Richard H. Wiggins, George R. Doddington | 1984-03-27 |