Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835463 | Wide dynamic range a.c. current sensor | Timothy J. Knutson | 1989-05-30 |
| RE32905 | Satellite communications system and apparatus | — | 1989-04-11 |
| 4819228 | Synchronous packet voice/data communication system | Charles M. Corbalis, Brian Holden, Jon K. Masatsugu, Lewis James Marggraff, David P. Owen +1 more | 1989-04-04 |