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发明名称
Pumping unit
摘要
申请公布号
US2664824(A)
申请公布日期
1954.01.05
申请号
US19490130981
申请日期
1949.12.03
申请人
LUFKIN FOUNDRY & MACHINE COMPANY
发明人
FINCHER 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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