Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888545 | Improved tap switching power supply | Nicholas Celenza | 1989-12-19 |
| 4812959 | Synchronization circuit for a blocking oscillator | Carleton D. Driscoll, Manfred Waechter | 1989-03-14 |