FASTENER FOR JOINING TOGETHER SIMPLE SECTIONS OF MINE LINING FOR MINE GALLERIES OF TRAPEZOIDAL,IN PARTICULAR RECTANGULAR,CROSS-SECTION,申请号PL19800226054-传众专利搜索

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发明名称	FASTENER FOR JOINING TOGETHER SIMPLE SECTIONS OF MINE LINING FOR MINE GALLERIES OF TRAPEZOIDAL,IN PARTICULAR RECTANGULAR,CROSS-SECTION
摘要
申请公布号	PL129074(B1)	申请公布日期	1984.03.31
申请号	PL19800226054	申请日期	1980.08.04
申请人		发明人
分类号	E21D;E21D11/34;(IPC1-7):E21D11/34	主分类号	E21D
代理机构		代理人
主权项
地址

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