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发明名称
FREMGANGSM}TE OG INNRETNING FOR REGISTRERING AV ET BOREHULLS FORL¦P
摘要
申请公布号
NO137914(B)
申请公布日期
1978.02.06
申请号
NO19740001073
申请日期
1974.03.26
申请人
DEUTSCHE TEXACO AG,
发明人
ROEHR, HANS ULRICH,
分类号
E21B;E21B47/02;E21B47/022;(IPC1-7):E21B47/02
主分类号
E21B
代理机构
代理人
主权项
地址
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