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发明名称
BOREHOLE SENSING TOOL WITH OPTICAL ROTATION SENSOR
摘要
申请公布号
EP0175298(A3)
申请公布日期
1988.02.03
申请号
EP19850111595
申请日期
1985.09.13
申请人
DEVELCO, INCORPORATED
发明人
FRASER, EDWARD CLEVELAND;MARSH, JOHN LOWRY;RORDEN, LOUIS HAROLD
分类号
G01C9/00;E21B47/022;G01V11/00;(IPC1-7):G01V11/00;E21B47/024
主分类号
G01C9/00
代理机构
代理人
主权项
地址
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