Inventors:
LeRoy L. White - Washington DC
International Classification:
E05B 6510
Abstract:
A system to prevent unauthorized entry into a room through a door or a window opening. The system includes a grille hinged on one side of the opening and bar means attached at one end to the grille and extending through a port in a wall. Means are provided to hold the bar means against an inner wall to prevent opening the grille.