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

Hingsum F. Fung

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Cellular network-based geographic coverage area reporting...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
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Cellular network-based location system

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
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Profile ID: LFUS-PAI-P-1813328

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