Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D328437 | Musical digital interface instrument | — | 1992-08-04 |
| 4974164 | Digital measuring and proportioning instrument | James L. Amstutz | 1990-11-27 |
| 4604708 | Electronic security system for externally powered devices | — | 1986-08-05 |