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发明名称
Fan
摘要
申请公布号
US1893184(A)
申请公布日期
1933.01.03
申请号
US19290334625
申请日期
1929.01.24
申请人
THE HOOVER COMPANY
发明人
SMELLIE DONALD C.
分类号
F04D29/66
主分类号
F04D29/66
代理机构
代理人
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