4. Telephonic communications
  5. Having light wave or ultrasonic link for speech or paging...
  6. Including fiber optic link within telephone network

Jong-Jin Jang

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Circuit for stabilizing the bias of a paging receiver with power

Telecommunications – Receiver or analog modulated signal frequency converter – With particular receiver circuit
Patent

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Paging system for automatically dialing and method therefor

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent

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Time setting and backup device for a battery-driven communicatio

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Profile ID: LFUS-PAI-P-1265814

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