Title
Marie Van Brittan Brown invented the first home security system with peepholes, two-way communication, television, and a button that notified the police directly. Credit: US Patent Office
Abstract/Description
Date created
2018-12-10 18:58:27
Marie Van Brittan Brown invented the first home security system with peepholes, two-way communication, television, and a button that notified the police directly. Credit: US Patent Office