专利名称：Enclosure发明人：Richard P. King申请号：US06/141633申请日：19800418公开号：US04337602A公开日：19820706
摘要：An enclosure for preventing the loss of heat and moisture through a ceilingentrance. The enclosure includes a flexible envelope with a fastening means to permitingress and egress through the ceiling entrance while insulating the ceiling with a dead airspace when the entrance is closed.
申请人：KING; RICHARD P.
代理人：John Maier, III
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