A structure comprising a plurality of partition members in sheet form each providing a pair of spaced opposite partition faces connected at one side and non-connected at the other side. These partition members are grouped into a telescoped assembly by guiding each of them into the internal space of another...http://www.google.com/patents/US4072179?utm_source=gb-gplus-sharePatent US4072179 - Structure adapted to be successively drawn and telescoped
