Sources

"Burglar in Church Trapped By Police." New York Times. June 6, 1908.

"Burglars Strike Alarm." New York Times. March 21, 1913.

Cunningham, John E. Security Electronics. Indianapolis: Howard W. Sams & Co., Inc. 1970.

Google Patents

http://www.google.com/patents?id=sIFiAAAAEBAJ&dq=Burglar+Alarm+1853&jtp=1

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