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发明名称
FREMGANGSMAATE OG APPARAT FOR DETEKTERING AV FASTKJOERINGSPUNKTER FOR EN ROERLEDNING I ET BOREHULL.
摘要
申请公布号
NO155635(C)
申请公布日期
1987.05.06
申请号
NO19810004303
申请日期
1981.12.16
申请人
SCHLUMBERGER LIMITED
发明人
HACHE, JEAN-MICHEL
分类号
G01B21/20;E21B47/09;(IPC1-7):E21B47/09
主分类号
G01B21/20
代理机构
代理人
主权项
地址
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