RELATIVE DRILL BIT DIRECTION MEASUREMENT,申请号EP20020747945-传众专利搜索

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发明名称	RELATIVE DRILL BIT DIRECTION MEASUREMENT
摘要
申请公布号	EP1442320(A1)	申请公布日期	2004.08.04
申请号	EP20020747945	申请日期	2002.07.10
申请人	VECTOR MAGNETICS LLC	发明人	KUCKES, ARTHUR, F.;PITZER, RAHN, G.;NEKUT, ANTHONY, G.
分类号	E21B47/024;E21B7/06;E21B7/08;(IPC1-7):G01V3/26;G01V3/20;E21B7/04	主分类号	E21B47/024
代理机构		代理人
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