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发明名称
Louvered vent
摘要
申请公布号
US2195704(A)
申请公布日期
1940.04.02
申请号
US19370174563
申请日期
1937.11.15
申请人
BERTHA MANTZ
发明人
MANTZ BERTHA
分类号
F24F13/08
主分类号
F24F13/08
代理机构
代理人
主权项
地址
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