STEERABLE SOIL PENETRATION SYSTEM,申请号EP20030743813-传众专利搜索

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发明名称	STEERABLE SOIL PENETRATION SYSTEM
摘要
申请公布号	EP1483475(A2)	申请公布日期	2004.12.08
申请号	EP20030743813	申请日期	2003.03.07
申请人	SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.	发明人	BETTS, MICHAEL, JOHN;OOENEN, JOSEF, GUILLAUME, CHRISTOFFEL;KAPTEIJN, PIETER, KAREL, ANTON;OOSTERLING, PETER;SCHILTE, PAUL, DIRK;VAN DER SMAN, PLEUN, MARINUS;VAN WECHEM, GUSTAAF, LOUIS
分类号	E21B7/06;E21B7/20;E21B7/26;E21B7/30;E21B17/20;(IPC1-7):E21B7/26	主分类号	E21B7/06
代理机构		代理人
主权项
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