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发明名称
Rohrabsetzer
摘要
申请公布号
DE69130264(D1)
申请公布日期
1998.10.29
申请号
DE19916030264
申请日期
1991.07.11
申请人
HALLIBURTON ENERGY SERVICES, INC., DALLAS, TEX., US
发明人
DOLLISON, WILLIAM W., DALLAS, TEXAS 75229, US
分类号
E21B17/06;E21B23/02;E21B23/06;E21B33/12;(IPC1-7):E21B23/02
主分类号
E21B17/06
代理机构
代理人
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地址
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