Manually programmable audible alarm system

Details Manually programmable audible alarm system Manually programmable audible alarm system

1977-07-29

1979-04-24

Pitts, Harold I.

Communications: electrical

Systems

Call station

340384E, 340517, 340539, 3403091, G08B 2300

Patent

active

041515145

ABSTRACT:
An audible alarm system provides for a manually operated switch by which the location of an emergency can be manually coded into a storage medium. An audible alarm is sounded in response to the operation of such switch, indicating an emergency. Following this alarm, a plurality of successive audible tones are sounded to indicate the location of an emergency, one such tone being sounded for each operation of the manually operable switch.

REFERENCES:
patent: 2899674 (1959-08-01), Sierer
patent: 2979706 (1961-04-01), Simon
patent: 3909826 (1975-09-01), Schildmeier

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