POSITIONING MINE ROADWAY SUPPORTS,申请号GB19810009529-传众专利搜索

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发明名称	POSITIONING MINE ROADWAY SUPPORTS
摘要
申请公布号	GB2095717(B)	申请公布日期	1984.10.24
申请号	GB19810009529	申请日期	1981.03.26
申请人	DOBSON PARK INDUSTRIES LTD	发明人
分类号	E21D11/40;(IPC1-7):E21D11/40	主分类号	E21D11/40
代理机构		代理人
主权项
地址

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