LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system

Device for inducing a wink in a telephone system

Telephonic communications – Terminal accessory or auxiliary equipment – Attachable to terminal housing

Device for lifting a handset

Telephonic communications – Terminal – Switch or switch actuator structure

Device for limiting the working voltage for mechanical switches

Telephonic communications – Terminal – Switch or switch actuator structure

Device for limiting the working voltage mechanical switches in t

Telephonic communications – Telephone line or system combined with diverse electrical... – Remote control

Device for making videotape recording reservations over a teleph

Telephonic communications – Special services – Anonymous party

Device for managing voice data automatically linking marked mess

Telephonic communications – Polystation line system – Connected to central office

Device for manufacturing liquid crystal display panel

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission

Device for measuring analog telephony signals

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of hybrid or echo suppressor or canceller

Device for measuring echo return loss in a two-two wire line sys

Telephonic communications – Terminal – Housing or housing component

Device for mobile telephones

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system

Device for monitoring a switch

Telephonic communications – Including aid for handicapped user

Device for mounting a telecommunications device for the deaf in

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...

Device for multimedia communication

Telephonic communications – Centralized switching system – Switching controlled in response to called station...

Device for optimizing the circuit switching capacity of a...

Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation

Device for processing digital signal in audio-frequency bandwidt

Telephonic communications – Subscriber line or transmission line interface – Network interface device

Device for processing echo, particularly acoustic echo in a tele

Telephonic communications – Centralized switching system – Call distribution to operator

Device for programming script sets in a telephone system

Telephonic communications – Terminal – Housing or housing component

Device for protecting electrical apparatus and the operator when

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Monitoring

Device for providing dual monitoring of digital equipment