HYDROMECHANICAL UNIT FOR DRILLING WELLS,申请号SU19792849043-传众专利搜索

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发明名称	HYDROMECHANICAL UNIT FOR DRILLING WELLS
摘要
申请公布号	SU872750(A1)	申请公布日期	1981.10.15
申请号	SU19792849043	申请日期	1979.12.05
申请人	UK NI PK I PODZEMNOJ GIDRAVLICHESKOJ DOBYCHI UGLYA "UKRNIIGIDROUGOL"	发明人	MITROFANOV IGOR A,SU;SMETANA NIKOLAJ YA,SU;PUCHKOV BORIS M,SU;UDOVIKA ANATOLIJ YA,SU
分类号	E21B7/18;E21C25/60;(IPC1-7):E21C25/60	主分类号	E21B7/18
代理机构		代理人
主权项
地址

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