4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. Testing of network terminating interface, subscriber trunk...

Wen-Jen Yeh

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Apparatus for monitoring telecommunication transmission

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of network terminating interface – subscriber trunk...
Patent

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Uninterruptible power supply having a 115V or 230V selectable AC

Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
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Profile ID: LFUS-PAI-P-371806

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