Anti-theft alarm circuit and compatible warning plugs

Details Anti-theft alarm circuit and compatible warning plugs Anti-theft alarm circuit and compatible warning plugs

1979-10-29

1981-11-10

Waring, Alvin H.

Communications: electrical

Condition responsive indicating system

Specific condition

340571, 340687, G08B 1302

Patent

active

043001300

ABSTRACT:
An anti-theft alarm circuit and compatible warning plugs; the warning plugs are designed to look to be an integral part of the stereo component or appliance to which they are attached. When the warning plugs are disconnected, however, the alarm system is activated.

REFERENCES:
patent: 3484775 (1969-12-01), Cline
patent: 3794989 (1974-02-01), Manley et al.
patent: 4075617 (1978-02-01), Wireman
patent: 4097843 (1978-06-01), Basile
patent: 4151521 (1979-04-01), Wirth, Jr.

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