Marie Van Brittan Brown invented an early Edition of the modern house security program in 1966 with the help of her husband, Albert. Simple yet extremely Superior for its time, Brown's method produced use of peepholes, a shut-circuit digicam technique, a two-way microphone, and an unexpected emergency alarm. Prewiring can https://vymaps.com/US/The-World-Protection-Group-Inc-VN25283/?id_new=7941f5009f8161e8f314e9838081b666