HYDRAULIC SYSTEM OF MINE LINING,申请号PL19830241854-传众专利搜索

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发明名称	HYDRAULIC SYSTEM OF MINE LINING
摘要
申请公布号	PL138654(B1)	申请公布日期	1986.10.31
申请号	PL19830241854	申请日期	1983.05.06
申请人		发明人
分类号	E21D;E21D23/16;(IPC1-7):E21D23/16	主分类号	E21D
代理机构		代理人
主权项
地址

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