Windows and doors
 This invention relates to closure systems of the kind comprising a closure member such as a window or door movable within a fixed frame consisting of two frame-like parts which have a gap between them and are connected together by connector members such as dowels or spacers, and comprising sealing and locking strips which are displaceably mounted in said gap in said fixed frame, said strips being guided by guide slots and guide connector members and each being insertable in a guide groove in the closure member. According to the invention, said strips contain said guide slots and said connector members are arranged to act as guide connector members to hold said parts at a distance from one another. 
E E
E06B E06B
inventional inventional
Bernhard
Kirsch