HOIST FOR ASSEMBLING DERRICKS,申请号SU19792783760-传众专利搜索

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发明名称	HOIST FOR ASSEMBLING DERRICKS
摘要
申请公布号	SU836334(A1)	申请公布日期	1981.06.07
申请号	SU19792783760	申请日期	1979.06.20
申请人	LVOVSKIJ POLT INSTITUT	发明人	KALININ SERGEJ G,SU;LYUTENKO VASILIJ E,SU
分类号	E21B15/00;(IPC1-7):E21B15/00	主分类号	E21B15/00
代理机构		代理人
主权项
地址

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