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

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

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

Network interface device having cavities for housing test circui

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

OmniTester

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

Order wire in telephone communication system

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

Perfected protection and cutting unit by rotational control devi

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

Portable fixture for simulating and testing payphones

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

Portable line test telephone

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

Portable telecommunications test instrument with inductive probe

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

Portable telecommunications test instrument with line condition

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

Probe for sampling differential electromagnetic fields

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

Remote controlled tone generator system

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

Remote testing of a communications line

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

Ring, tip, ground testing tool

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

Speakerphone test set

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

Special service signal tester