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发明名称
Control governor for fluidoperated pumps
摘要
申请公布号
US2589668(A)
申请公布日期
1952.03.18
申请号
US19470746112
申请日期
1947.05.05
申请人
DRESSER EQUIPMENT COMPANY
发明人
COBERLY CLARENCE J.
分类号
E21B43/12
主分类号
E21B43/12
代理机构
代理人
主权项
地址
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