Guard monitor system

Details Guard monitor system Guard monitor system

1975-07-14

1978-04-25

Pitts, Harold I.

Communications: electrical

Systems

Signal box type

3403091, 3403094, G07C 120

Patent

active

040865770

ABSTRACT:
The specification discloses a guard monitoring system having remote guard stations to be activated in a predetermined order. Station activation causes a control circuit to activate a recording device and to be operatively connected to the next station in the predetermined order.

REFERENCES:
patent: 2084097 (1937-06-01), Long
patent: 2389345 (1945-11-01), Dell
patent: 2968521 (1961-01-01), Gross
patent: 3736561 (1973-05-01), Rumpel
patent: 3774193 (1973-11-01), Restrepo

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