STABILIZER FOR DIRECTIONAL DRILLING OF WELLS,申请号SU19914913446-传众专利搜索

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法人/股东/高管

发明名称	STABILIZER FOR DIRECTIONAL DRILLING OF WELLS
摘要
申请公布号	RU1838566(C)	申请公布日期	1993.08.30
申请号	SU19914913446	申请日期	1991.02.01
申请人	GRIGOREV MIKHAIL N;IGREVSKIJ VALERIJ I;GRIGOREVA TATYANA M	发明人	GRIGOREV MIKHAIL N;IGREVSKIJ VALERIJ I;GRIGOREVA TATYANA M
分类号	E21B7/08	主分类号	E21B7/08
代理机构		代理人
主权项
地址

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