ELEVATOR,申请号SU19792732975-传众专利搜索

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发明名称	ELEVATOR
摘要
申请公布号	SU796384(A1)	申请公布日期	1981.01.15
申请号	SU19792732975	申请日期	1979.03.05
申请人	PORFILKIN ALEKSEJ G,SU	发明人	PORFILKIN ALEKSEJ G,SU
分类号	E21B19/06;(IPC1-7):E21B19/06	主分类号	E21B19/06
代理机构		代理人
主权项
地址

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