Mine prop,申请号GB19500021247-传众专利搜索

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发明名称	Mine prop
摘要
申请公布号	GB703357(A)	申请公布日期	1954.02.03
申请号	GB19500021247	申请日期	1948.08.28
申请人	DE DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG, HANDELEND VOOR EN NAMENS DEN STAAT DER NEDERLANDEN	发明人
分类号	E21D15/28	主分类号	E21D15/28
代理机构		代理人
主权项
地址

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