Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315208 | Regulated power supply having its d.c. voltage source selectively supplemented by a d.c. to d.c. converter | John M. McElroy | 1982-02-09 |
| 4314234 | Test set for railway cab signal system | Joseph J. Pierro, Jr. | 1982-02-02 |
| 4314237 | Fail-safe acknowledging circuit | — | 1982-02-02 |
| 4314306 | Signal-powered receiver | — | 1982-02-02 |