Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1976-08-17
1978-03-21
Caldwell, Sr., John W.
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
340420, 340261, 340280, 194 97R, G08B 2100
Patent
active
040805980
ABSTRACT:
A protective device for coin operated vending and game machines prevents machine operation and sounds an alarm for a predetermined time after either the machine is struck or power to the machine is interrupted.
REFERENCES:
patent: 3553674 (1971-01-01), Head
patent: 3710371 (1973-01-01), Whalen et al.
patent: 3742480 (1973-06-01), Hoecker
patent: 3765008 (1973-10-01), Lowry
patent: 3828338 (1974-08-01), Kato
patent: 3836901 (1974-09-01), Matto et al.
patent: 3924254 (1975-12-01), Klebold et al.
Caldwell Sr. John W.
Crosland Donnie L.
Wico Corporation
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