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

Marian Kramarczyk

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Method and apparatus for configuring and maintaining token ring

Multiplex communications – Wide area network – Packet switching
Patent

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Method and apparatus for configuring and maintaining token ring

Multiplex communications – Wide area network – Packet switching
Patent

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Test access and performance monitoring system and method for...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of network terminating interface – subscriber trunk...
Reexamination Certificate

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Test access system and method for digital communication...

Multiplex communications – Diagnostic testing
Reexamination Certificate

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Test access system and method for digital cross connect...

Multiplex communications – Diagnostic testing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-935897

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