Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4300430 | Chord recognition system for an electronic musical instrument | Angelo A. Bione, Robert J. Sehnert | 1981-11-17 |
| 4300433 | Harmony generating circuit for a musical instrument | Wilford R. Schreier | 1981-11-17 |