| http://www.w3.org/ns/prov#value | - REVOLUTIONARY CONCEPTS, INC. (Matthews, NC)International Classification: H04N 7/18, H04N 7/14U.S. Classification: 348 1401, 348143Abstract: A detection and viewing system includes a wireless device associated with a door and configured to communicate video data, the wireless device including a camera for providing the video data; a sensor for activating the camera, the sensor comprising a metal de
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