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发明名称
Louver construction
摘要
申请公布号
US2299832(A)
申请公布日期
1942.10.27
申请号
US19380205553
申请日期
1938.05.02
申请人
JOHN SPARGO
发明人
MADER EMIL A.
分类号
F24F13/15
主分类号
F24F13/15
代理机构
代理人
主权项
地址
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