4. Pulse or digital communications
  5. Transceivers
  6. Modems

Keith R. Nauman

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Line sharing multipoint POTS splitter with intelligent...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of trunk or long line
Reexamination Certificate

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Method and apparatus for reducing transmission errors in...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Reexamination Certificate

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System and method for implementing V.90 central site modem...

Pulse or digital communications – Transceivers – Modems
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2500350

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