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发明名称
Refrigerated fan guard
摘要
申请公布号
US2474109(A)
申请公布日期
1949.06.21
申请号
US19460687084
申请日期
1946.07.30
申请人
KELLER NELLIE G;KELLER WILLIAM J
发明人
KELLER NELLIE G.;KELLER WILLIAM J.
分类号
F04D29/70;F16P1/02
主分类号
F04D29/70
代理机构
代理人
主权项
地址
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