Remote monitor signalling system

Details Remote monitor signalling system Remote monitor signalling system

1974-12-19

1976-11-02

Claffy, Kathleen H.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

73317, 340180X, H04M 1100

Patent

active

039898989

ABSTRACT:
A remote monitoring apparatus adapted for use with a commercial or private telephone communication system for activating a condition monitoring mechanism and converting the measured output thereof into data signals. The data signals are transmitted by the apparatus to a remote receiving station from which a triggering signal is derived to initiate operation of the data signalling apparatus.

REFERENCES:
patent: 2007669 (1935-07-01), Yates
patent: 2168149 (1939-08-01), Arnold
patent: 2630715 (1953-03-01), Hall et al.
patent: 2726377 (1955-12-01), Hammer
patent: 3072894 (1963-01-01), Chapin
patent: 3266018 (1966-08-01), Higgins
patent: 3274584 (1966-09-01), Morgan et al.
patent: 3339519 (1967-09-01), Taylor et al.
patent: 3588357 (1971-06-01), Sellari

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