LandOfFree - US Patents - Listing for Telephonic communications,Diagnostic testing, malfunction indication, or electrical...,Using portable test set

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

Maintenance unit for modular public telephone

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

Method and apparatus as for testing a telephone line interface c

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

Method and means for remote testing of unused telephone lines

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

Method and system for testing a connection in a telephone networ

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

Methods and test sets for testing multi-line...

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

Methods and test sets for testing multi-line...

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

Modular test instrument

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

Modular test instrument

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

Modular test instrument

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

Modular test instrument

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

Multi-conductor identifier with voice communication capability

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

Multi-interface telephony test system using separate...

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

Multiwire-pair telecommunications test system