DEVICE FOR SCREWING AND UNSCREWING PIPES,申请号SU19792739986-传众专利搜索

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发明名称	DEVICE FOR SCREWING AND UNSCREWING PIPES
摘要
申请公布号	SU832041(A1)	申请公布日期	1981.05.23
申请号	SU19792739986	申请日期	1979.03.12
申请人	VNII METODIKI TEKHNIKI RAZVEDKI	发明人	EGOROV EDUARD K,SU;PONOMAREV GENNADIJ V,SU
分类号	E21B19/16;(IPC1-7):E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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