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经营范围
发明名称
Fluid lift pump
摘要
申请公布号
US2152873(A)
申请公布日期
1939.04.04
申请号
US19370147535
申请日期
1937.06.10
申请人
CHURCH WALTER L
发明人
CHURCH WALTER L.
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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