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

David Ehreth

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Fiber optic based subscriber terminal

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

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Fiber optic based subscriber terminal

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

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Method and system for communicating video signals to a...

Interactive video distribution systems – Local video distribution system – Multiunit or multiroom structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1483162

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