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

Douglas A. Spencer

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Adaptive synchronization arrangement

Multiplex communications – Wide area network – Packet switching
Patent

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Adaptive synchronization arrangement

Multiplex communications – Wide area network – Packet switching
Patent

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Comprehensive echo control system

Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate

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Digital switching over PAM bus system

Multiplex communications – Wide area network – Packet switching
Patent

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Establishing and supporting data traffic in private branch excha

Multiplex communications – Wide area network – Packet switching
Patent

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Profile ID: LFUS-PAI-P-31451

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