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发明名称
FREMGANGSMAATE FOR BESTEMMELSE AV SLITASJE PAA EN BOREKRONE
摘要
申请公布号
NO171741(C)
申请公布日期
1993.04.28
申请号
NO19890001392
申请日期
1989.04.03
申请人
FOREX NEPTUNE SA
发明人
JARDINE, STUART
分类号
E21B12/02;E21B44/00;G01H1/00;G05B19/4065;(IPC1-7):E21B47/00
主分类号
E21B12/02
代理机构
代理人
主权项
地址
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