Marie Van Brittan Brown invented an early Edition of the fashionable residence security technique in 1966 with the help of her husband, Albert. Straightforward nevertheless hugely State-of-the-art for its time, Brown's process designed utilization of peepholes, a closed-circuit digicam process, a two-way microphone, and an unexpected emergency alarm. These ratings https://www.townplanner.com/directory/247995/