4. Multiplex communications
  5. Wide area network
  6. Packet switching

Josef Sperlich

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Method for establishing a radio connection

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 for transmitting communications services via satellites

Multiplex communications – Wide area network – Packet switching
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TDMA point-to-multipoint communications system and its use

Multiplex communications – Wide area network – Packet switching
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Profile ID: LFUS-PAI-P-1434957

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