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发明名称
Fan protector
摘要
申请公布号
US1809583(A)
申请公布日期
1931.06.09
申请号
US19300455709
申请日期
1930.05.26
申请人
COOK EMMA K
发明人
COOK EMMA K.
分类号
F04D29/70
主分类号
F04D29/70
代理机构
代理人
主权项
地址
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