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经营范围
发明名称
Well pump
摘要
申请公布号
US2191380(A)
申请公布日期
1940.02.20
申请号
US19370120364
申请日期
1937.01.13
申请人
HALL JESSE E
发明人
HALL JESSE E.
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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