Closed circuit television system, comprising a television camera, a rail system, a mechanism associated with the rail system and the television camera for moving the television camera physically about premises being protected and a television receiver for displaying the image produced by the television camera.
Closed circuit television system, comprising a television camera, a rail system, a mechanism associated with the rail system and the television camera for moving the television camera physically about premises being protected and a television receiver for displaying the image produced by the television camera.
Closed circuit television system, comprising a television camera, a ra...
