MECHANIZED MINE LINING,申请号PL19880273771-传众专利搜索

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发明名称	MECHANIZED MINE LINING
摘要
申请公布号	PL151509(B1)	申请公布日期	1990.09.28
申请号	PL19880273771	申请日期	1988.07.14
申请人		发明人
分类号	E21D;E21D23/04;(IPC1-7):E21D23/04	主分类号	E21D
代理机构		代理人
主权项
地址

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