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发明名称
FREMGANGSMAATE OG INNRETNING FOR DETEKTERING AV SLITASJE PAA EN ROTERBAR BORKRONE.
摘要
申请公布号
NO863586(A)
申请公布日期
1987.03.27
申请号
NO19860003586
申请日期
1986.09.08
申请人
EXXON PRODUCTION RESEARCH CO.
发明人
DAVIS, ALBERT P. JR.;RAMSEY, MARK S.;STOLLE, JOSEPH W.
分类号
E21B10/22;E21B12/02;(IPC1-7):E21B12/02
主分类号
E21B10/22
代理机构
代理人
主权项
地址
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