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发明名称
Window ventilator
摘要
申请公布号
US2121646(A)
申请公布日期
1938.06.21
申请号
US19360085930
申请日期
1936.06.18
申请人
WEBB JAMES A
发明人
WEBB JAMES 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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