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

Tomoyoshi Shimizu

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Data link layer processor system for a local exchange system

Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate

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Digital local switching system for integrated service digital ne

Multiplex communications – Wide area network – Packet switching
Patent

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Simple adapter for multiplexing ISDN terminals

Multiplex communications – Wide area network – Packet switching
Patent

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Profile ID: LFUS-PAI-P-1751545

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