4. Telecommunications
  5. Transmitter and receiver at separate stations
  6. Single message via plural carrier wave transmission

Charles L. Warren

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In-building microwave communication system permits frequency ref

Telecommunications – Transmitter and receiver at separate stations – Single message via plural carrier wave transmission
Patent

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Incoming call control by the called party

Telephonic communications – Audio message storage – retrieval – or synthesis – Indication or notification of message
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1603326

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