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发明名称
Louver mechanism for attic ventilation
摘要
申请公布号
US2464000(A)
申请公布日期
1949.03.08
申请号
US19460647100
申请日期
1946.02.12
申请人
SCHILD AUGUST W
发明人
SCHILD AUGUST W.
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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