MINE ROOF SUPPORTS AND COMPONENTS THEREFOR,申请号GB19910003726-传众专利搜索

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发明名称	MINE ROOF SUPPORTS AND COMPONENTS THEREFOR
摘要
申请公布号	GB9103726(D0)	申请公布日期	1991.04.10
申请号	GB19910003726	申请日期	1991.02.22
申请人	GULLICK DOBSON LIMITED	发明人
分类号	E21D23/06	主分类号	E21D23/06
代理机构		代理人
主权项
地址

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