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发明名称
ANNULUS PLUGGING
摘要
申请公布号
EP0035857(A3)
申请公布日期
1981.11.04
申请号
EP19810300870
申请日期
1981.03.03
申请人
MOBELL BLOWOUT SERVICES LIMITED
发明人
BROOKS, JOE;HENSON, GEORGE STALLWOOD
分类号
C09K8/42;E21B29/08;E21B33/068;E21B33/134;(IPC1-7):E21B33/13;E21B33/06
主分类号
C09K8/42
代理机构
代理人
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地址
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