Patent US 3309605A
Patent number | US 3309605A (click link for details and documents via Google Patents) |
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Title | Frequency converter wherein an astable oscillator is free running at high frequency input signals and is synchronized to low frequency input signals |
Inventors | El Don L Hoven |
Company | Tektronix Inc |
Filing date | 1963-08-19 |
Grant date | 1967-03-14 |