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经营范围
发明名称
Stacked water regulator
摘要
申请公布号
IE914188(A1)
申请公布日期
1992.06.17
申请号
IE19910004188
申请日期
1991.12.02
申请人
MCMURRY OIL TOOLS
发明人
BEN D. TERRAL
分类号
E21B23/03;E21B34/06;E21B34/10;E21B43/14;E21B43/20;(IPC1-7):E21B23/03
主分类号
E21B23/03
代理机构
代理人
主权项
地址
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