SELF ADVANCING MINE ROOF SUPPORT,申请号AU19820089490-传众专利搜索

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发明名称	SELF ADVANCING MINE ROOF SUPPORT
摘要
申请公布号	AU540247(B2)	申请公布日期	1984.11.08
申请号	AU19820089490	申请日期	1982.10.19
申请人	DOBSON PARK INDUSTRIES PLC	发明人	KENNETH DAVID PRESCOT;CHARLES JOHN HOLLAND
分类号	E21D23/08;(IPC1-7):E21D23/08	主分类号	E21D23/08
代理机构		代理人
主权项
地址

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