TELESCORIC DRILLING ROD,申请号SU19792855232-传众专利搜索

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发明名称	TELESCORIC DRILLING ROD
摘要
申请公布号	SU861544(A1)	申请公布日期	1981.09.07
申请号	SU19792855232	申请日期	1979.12.21
申请人	KY VNII STROITELNOGO DOROZHNOGO MASHINOSTROENIYA	发明人	KAGAN IGOR L,SU;GOJKHMAN YAKOV A,SU;MAKUSHKIN DAMBA O,SU;BEREZOV SEMEN I,SU;VOJNICH LEONID K,SU;GAVRILOV GENNADIJ A,SU;RACHEV MIKHAIL P,SU
分类号	E21B17/07;(IPC1-7):E21B17/07	主分类号	E21B17/07
代理机构		代理人
主权项
地址

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