Marie Van Brittan Brown invented an early Edition of the fashionable residence security technique in 1966 with the help of her husband, Albert. Straightforward but very Innovative for its time, Brown's technique manufactured utilization of peepholes, a closed-circuit digicam procedure, a two-way microphone, and an crisis alarm. Its team of https://www.revdex.com/reviews/the-world-protection-group/l19972401