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发明名称
Ventilating device
摘要
申请公布号
US2528301(A)
申请公布日期
1950.10.31
申请号
US19450630645
申请日期
1945.11.24
申请人
DOE HANS H
发明人
DOE HANS H.
分类号
F24F7/013
主分类号
F24F7/013
代理机构
代理人
主权项
地址
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