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发明名称
Roof vent
摘要
申请公布号
US2277982(A)
申请公布日期
1942.03.31
申请号
US19400363126
申请日期
1940.10.28
申请人
DETRICK INSULATION ENGINEERS, INC.
发明人
HOSBEIN LOUIS H.
分类号
F24F7/02
主分类号
F24F7/02
代理机构
代理人
主权项
地址
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