77147387
Apr 3, 2007
Apr 8, 2008
Active Trademark
Intercom systems featuring full digital circuitry, backlit and heavy duty touch pad controls, split or mono audio versions and simultaneous radio transmission capabilities, composed of primary control units, remote head stations, fixed push-to-talk stations, intercom only stations, standard length and pre-terminated plug and play cabling, headset extension jacks, and footswitches for hands-free radio transmission, and communication headsets for use with communication radios, intercom systems, or other communications network transceivers and for use with radio accessories, namely portable push-to-talk buttons, all for use for emergency vehicle communications
Electrical and Scientific Apparatus