GEAR FOR STEPPED GROUTING OF WELLS,申请号SU19914947156-传众专利搜索

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发明名称	GEAR FOR STEPPED GROUTING OF WELLS
摘要
申请公布号	RU1803535(C)	申请公布日期	1993.03.23
申请号	SU19914947156	申请日期	1991.06.20
申请人	VNII BUROVOJ TEKHNIKI	发明人	CHUEV PETR A,SU;FARUKSHIN LEV KH,SU;MORZHITS PETR A,SU
分类号	E21B33/14	主分类号	E21B33/14
代理机构		代理人
主权项
地址

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