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

A.T.&T. Corp.

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Employing customer premises equipment in communications network

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

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Fiber optic cable restoration enclosure

Optical waveguides – Accessories
Patent

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Method and apparatus for delivering messages to a device

Telephonic communications – Audio message storage – retrieval – or synthesis – Interaction with an external nontelephone network
Reexamination Certificate

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Method and apparatus for providing consumer-chosen telephone...

Interactive video distribution systems – Video distribution system with upstream communication – Telephony via television distribution network
Reexamination Certificate

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Method and apparatus for routing of best-effort and quality...

Multiplex communications – Pathfinding or routing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-371819

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