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

Roy L. Soto

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Call yourself BERT testing of ISDN line

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

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Call yourself BERT testing of ISDN line

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

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Dual power polarity protector/indicator

Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Reexamination Certificate

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Interactive contextual-based assistance for portable ISDN...

Multiplex communications – Diagnostic testing
Reexamination Certificate

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ISDN testing device and method

Multiplex communications – Wide area network – Packet switching
Patent

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Profile ID: LFUS-PAI-P-191101

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