4. Electricity: measuring and testing
  5. Measuring, testing, or sensing electricity, per se
  6. Frequency of cyclic current or voltage

Yung F. Fan Chiang

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Apparatus for detecting polarity of an input signal

Television – Synchronization – Sync separation
Patent

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Apparatus for detecting the frequency of an input signal by coun

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent

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Profile ID: LFUS-PAI-P-1886962

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