Marie Van Brittan Brown invented an early version of the trendy home security method in 1966 with the help of her partner, Albert. Very simple yet highly advanced for its time, Brown's system made usage of peepholes, a shut-circuit digital camera method, a two-way microphone, and an emergency alarm. Its https://www.callupcontact.com/b/businessprofile/The_World_Protection_Group_Inc/8659641