4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. Testing of subscriber loop or terminal

Jeffrey Farrington

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High capacity passive optical network

Optical communications – Multiplex – Optical local area network
Reexamination Certificate

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Lifeline telephony provision for voice over digital...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2073769

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