Matches 1 - 4 out of 4


Match Document Document Title
US20070291916 TELEPHONE INTERCOM REMOTE LINE INTERFACE MODULES FOR INSTALLATIONS WITH NON-LOCALIZED POINTS OF DEMARCATION  
An intercom system for use with a remote demarcation point includes a remote demarcation interface module operatively connected to the remote demarcation point, wherein the remote demarcation...
US20070041544 SYSTEM FOR THE APPLICATION AND REMOVAL OF INTERCOM TELEPHONE POWER UPON ACTIVATION OR DEACTIVATION OF TELEPHONE COMPANY SERVICE  
A system and method is provided for automatically connecting and disconnecting alternative power to intercom telephones without interfering or interacting with the power supplied or cancelled by...
US20060208910 Pet communication device and associated methods  
A device for establishing communication between a pet and a person includes a first receiver accessible by routing an incoming call signal thereto. A speaker in communication with the first...
US20080075252 Intercom having a hand-driven power generator unit  
An intercom is disclosed to include a housing houses a transmitter receiver control circuit board, and a hand-driven power generator unit, which has a speed-change gear set, a crank handle pivoted...
Matches 1 - 4 out of 4