Protective alarm system for metal-enclosed apparatus
United States Patent 3208061
US Patent References:
Warning signal
- - 2344014

/2899674.html
- - 2899674

Radio alarm for parking meters
- - 2937269

Building protection system
- - 3051934


Inventors:
Peter, Gervasi Joseph
Nathan, Robinson
Publication Date:
09/21/1965
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Assignee:
Peter, Gervasi Joseph
Nathan, Robinson
Primary Class:
340/539.310
Other Classes:
343/720, 455/128, 340/545.600, 340/932.200
International Classes:
G08B29/04; G08B29/00