Access control apparatus for use with buildings, gated propertie

Details Access control apparatus for use with buildings, gated propertie Access control apparatus for use with buildings, gated propertie

1997-01-15

2000-03-21

Woo, Stella

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote control

37910207, H04M 1100

Patent

active

060411066

ABSTRACT:
An access control apparatus with an outer housing including a door and a plurality of outer keys, a substantially closed inner housing that is removably mounted within the outer housing, and an electronic communication device within the inner housing which is operably connected to a telephone system and to the outer keys.

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Sentex Systems, Inc. Advertisement for Telephone Entry System with Built-in LCD Electronic Directory, p. 71 from Alarm Installer & Dealer ("AID"), Sep. 1988.

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