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发明名称	MOVING SYSTEM FOR MINING LINING
摘要
申请公布号	PL152135(B1)	申请公布日期	1990.11.30
申请号	PL19860262122	申请日期	1986.10.30
申请人		发明人
分类号	E21D;E21D23/08;E21F13/08;(IPC1-7):E21D23/08	主分类号	E21D
代理机构		代理人
主权项
地址

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