Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5400406 | Aircraft communication headset tester | Ture A. Heline, Jr. | 1995-03-21 |
| 4971398 | Suppression control of cab signal automated brake application | — | 1990-11-20 |
| 4607383 | Throat microphone | — | 1986-08-19 |
| 4508936 | Local external communication system | — | 1985-04-02 |