UNDERGROUND ROADWAY SUPPORT,申请号GB19850004678-传众专利搜索

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发明名称	UNDERGROUND ROADWAY SUPPORT
摘要
申请公布号	GB8504678(D0)	申请公布日期	1985.03.27
申请号	GB19850004678	申请日期	1985.02.22
申请人	HILTON MINING LTD	发明人
分类号	E21D11/14;E21D11/15	主分类号	E21D11/14
代理机构		代理人
主权项
地址

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