Aktiveringskredsløb til en borehulsventil,申请号DK19970001402-传众专利搜索

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发明名称	Aktiveringskredsløb til en borehulsventil
摘要
申请公布号	DK140297(A)	申请公布日期	1998.06.05
申请号	DK19970001402	申请日期	1997.12.04
申请人	SCHLUMBERGER TECHNOLOGY B.V.	发明人	HUBER, KLAUS B.;EDWARDS, GLEN A.
分类号	E21B23/04;E21B34/06;E21B34/10;E21B43/1185;(IPC1-7):E21B23/04	主分类号	E21B23/04
代理机构		代理人
主权项
地址

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