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Matches 1 - 4 out of 4
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1
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...
2
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...
3
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...
4
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
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