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经营范围
发明名称
SURFACE AERATION IMPELLER
摘要
申请公布号
US4066383(A)
申请公布日期
1978.01.03
申请号
US19760697519
申请日期
1976.06.18
申请人
GENERAL SIGNAL CORPORATION
发明人
LAKIN, MICHAEL B.
分类号
F04D29/22
主分类号
F04D29/22
代理机构
代理人
主权项
地址
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