POWERED ROOF SUPPORT FOR STEEP SEAMS,申请号SU19772439570-传众专利搜索

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发明名称	POWERED ROOF SUPPORT FOR STEEP SEAMS
摘要
申请公布号	SU613120(A1)	申请公布日期	1978.06.30
申请号	SU19772439570	申请日期	1977.01.03
申请人	DO NI UGOLNYJ INSTITUT	发明人	GORYACHIJ VLADIMIR G,SU;DUDCHENKO NIKOLAJ ,SU;ZHURBA ALEKSANDR N,SU;ANTONOV YURIJ V,SU
分类号	E21D23/00;(IPC1-7):E21D23/00	主分类号	E21D23/00
代理机构		代理人
主权项
地址

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