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发明名称
Fan
摘要
申请公布号
US2207948(A)
申请公布日期
1940.07.16
申请号
US19370173980
申请日期
1937.11.11
申请人
THE DETROIT EDISON COMPANY
发明人
SHERIDAN FREDERICK R.
分类号
F04D29/34
主分类号
F04D29/34
代理机构
代理人
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