4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
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Back wiring board and aggregated device

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – With blocking of normal usage
Reexamination Certificate

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Battery charging and signalling interconnect arrangement for cra

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Using portable test set
Patent

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Battery injection and loop supervision for DSL environment

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Using portable test set
Reexamination Certificate

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Board-to-board test unit for a digital subscriber line

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – With blocking of normal usage
Patent

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Bypass for telephone system splitter

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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