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发明名称
Window ventilator
摘要
申请公布号
US1813629(A)
申请公布日期
1931.07.07
申请号
US19290354047
申请日期
1929.04.10
申请人
LUMLEY FREDERICK G
发明人
LUMLEY FREDERICK G.
分类号
E06B7/26
主分类号
E06B7/26
代理机构
代理人
主权项
地址
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