Marie Van Brittan Brown invented an early Edition of the modern residence security technique in 1966 with the help of her husband, Albert. Easy but hugely State-of-the-art for its time, Brown's process designed utilization of peepholes, a closed-circuit digicam procedure, a two-way microphone, and an crisis alarm. Its crew of https://kontactr.com/form-page/f882ffad1bfa115