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发明名称
Well pump
摘要
申请公布号
US2630070(A)
申请公布日期
1953.03.03
申请号
US19500177467
申请日期
1950.08.03
申请人
GEORGE W. HARRIS
发明人
DAVIS LOUIS
分类号
F04B47/00
主分类号
F04B47/00
代理机构
代理人
主权项
地址
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