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Not known Factual Statements About Security Services

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Marie Van Brittan Brown invented an early version of the modern house security technique in 1966 with the help of her husband, Albert. Straightforward but hugely Highly developed for its time, Brown's procedure built usage of peepholes, a closed-circuit camera system, a two-way microphone, and an crisis alarm. Its workforce https://www.townplanner.com/directory/247995/

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