SUSPENDED MINE LINING,申请号PL19870264113-传众专利搜索

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发明名称	SUSPENDED MINE LINING
摘要
申请公布号	PL264113(A1)	申请公布日期	1988.10.27
申请号	PL19870264113	申请日期	1987.02.12
申请人		发明人
分类号	E21D;(IPC1-7):E21D/	主分类号	E21D
代理机构		代理人
主权项
地址

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