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经营范围
发明名称
Gas lift valve
摘要
申请公布号
US3375846(A)
申请公布日期
1968.04.02
申请号
US19630325716
申请日期
1963.11.22
申请人
OTIS ENGINEERING CORPORATION
发明人
CANALIZO CARLOS R.
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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