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发明名称
Bronze alloy casing centraliser
摘要
申请公布号
GB2339584(A)
申请公布日期
2000.02.02
申请号
GB19990021792
申请日期
1999.01.18
申请人
* RAY OIL TOOL CO., LTD;* RAY OIL TOOL CO., INC
发明人
ALAN LESLIE * MALE;RAYMOND FELIX * MIKOLAJCZYK
分类号
E21B17/10;(IPC1-7):E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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