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发明名称
ELEKTRISK STYRT SPERRE FOR BROENNANVENDELSER
摘要
申请公布号
NO930794(D0)
申请公布日期
1993.03.04
申请号
NO19930000794
申请日期
1993.03.04
申请人
SCHLUMBERGER TECHNOLOGY BV
发明人
DECORPS, JEAN-LUC;LAU, TING
分类号
E21B23/02;E21B23/04;E21B23/14;E21B34/06;(IPC1-7):E21B/
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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