Marie Van Brittan Brown invented an early Model of the fashionable household security procedure in 1966 with the assistance of her spouse, Albert. Uncomplicated still remarkably 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. Prewiring makes https://kontactr.com/form-page/f882ffad1bfa115