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经营范围
发明名称
Subsurface pump
摘要
申请公布号
US2800859(A)
申请公布日期
1957.07.30
申请号
US19550481440
申请日期
1955.01.12
申请人
UNITED STATES STEEL CORPORATION
发明人
CHENAULT ROY L.
分类号
F04B47/04
主分类号
F04B47/04
代理机构
代理人
主权项
地址
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