Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4242636 | Digital operate/release timer | Joseph F. Rizzo | 1980-12-30 |
| 4227054 | Digital constant-percent break pulse corrector | — | 1980-10-07 |
| 4223184 | Minimum break/make pulse corrector | Joseph F. Rizzo | 1980-09-16 |