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

Shunji Arai

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Communication apparatus

Telecommunications – Carrier wave repeater or relay system – Failure compensation
Reexamination Certificate

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Communication apparatus used for communicating in accordance wit

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

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Communication channel selection method

Telecommunications – Transmitter and receiver at separate stations
Patent

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Communication system, server device, client device and...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Reexamination Certificate

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Control apparatus for switching station connections using a hold

Telephonic communications – Special services – Call diversion
Patent

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Profile ID: LFUS-PAI-P-299183

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