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发明名称
FIRE ESCAPE
摘要
This invention is a fire escape system in which a window can be swung open; simultaneous with the swinging a descending device is lowered to the ground from the window ledge.
申请公布号
US3777846(A)
申请公布日期
1973.12.11
申请号
USD3777846
申请日期
1972.08.04
申请人
JOSEPHSON C,US;JOSEPHSON A,US
发明人
JOSEPHSON C,US;JOSEPHSON A,US
分类号
E06C9/14;(IPC1-7):E06C1/56;E06C9/10
主分类号
E06C9/14
代理机构
代理人
主权项
地址
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