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发明名称
Fan
摘要
申请公布号
US2037880(A)
申请公布日期
1936.04.21
申请号
US19330698523
申请日期
1933.11.17
申请人
HARTZELL INDUSTRIES, INC.
发明人
CHARAVAY FREDERICK
分类号
F04D29/28
主分类号
F04D29/28
代理机构
代理人
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