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发明名称
Intermittent gas-lift pump
摘要
申请公布号
US1780808(A)
申请公布日期
1930.11.04
申请号
US19280272731
申请日期
1928.04.25
申请人
THE NATIONAL SUPPLY COMPANY
发明人
ARCHER MERTON T.
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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