System and method for managing services and facilities in a...

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S545300, C340S545600, C340S539100, C340S542000, C340S571000, C340S870030, C340S870030

Reexamination Certificate

active

07142112

ABSTRACT:
The application discloses various methods and systems that utilize infrared communication to enhance and manage the security and convenience of occupants and the operation and efficiency of the staff of a multi-unit building.

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patent: WO02/060111 (2002-08-01), None

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