Support unit, more particularly for use in mine workings,申请号GB19630010793-传众专利搜索

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发明名称	Support unit, more particularly for use in mine workings
摘要
申请公布号	GB980658(A)	申请公布日期	1965.01.13
申请号	GB19630010793	申请日期	1963.03.19
申请人	MINES DOMANIALES DE POTASSE D'ALSACE	发明人
分类号	E21D15/48;E21D15/54;E21D23/04	主分类号	E21D15/48
代理机构		代理人
主权项
地址

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