IMPROVEMENTS IN SUPPORT ASSEMBLIES FOR MINERAL MINES,申请号GB19690019472-传众专利搜索

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发明名称	IMPROVEMENTS IN SUPPORT ASSEMBLIES FOR MINERAL MINES
摘要
申请公布号	GB1216953(A)	申请公布日期	1970.12.23
申请号	GB19690019472	申请日期	1969.04.16
申请人	GEWERKSCHAFT EISENHUETTE WESTFALIA	发明人
分类号	E21D23/00	主分类号	E21D23/00
代理机构		代理人
主权项
地址

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