Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878035 | Hybrid frequency shift keying modulator and method | John A. Vendely | 1989-10-31 |
| 4847569 | Automatic calibration system for a voltage control oscillator | Thaddeus J. Dudziak, Charles Lehmkuhl | 1989-07-11 |