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发明名称
Window ventilator
摘要
申请公布号
US1769484(A)
申请公布日期
1930.07.01
申请号
US19290392086
申请日期
1929.09.12
申请人
BAILEY FRED A
发明人
BAILEY FRED A.
分类号
E06B7/03
主分类号
E06B7/03
代理机构
代理人
主权项
地址
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