Patent US 3879649A
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| Patent number | US 3879649A (click link for details and documents via Google Patents) |
|---|---|
| Title | Selectable rectified alternating voltage power supply |
| Inventors | John Durecka |
| Company | Tektronix Inc |
| Filing date | 1974-02-11 |
| Grant date | 1975-04-22 |