MINE ROOF SUPPORTS,申请号GB19760005342-传众专利搜索

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发明名称	MINE ROOF SUPPORTS
摘要
申请公布号	GB1521581(A)	申请公布日期	1978.08.16
申请号	GB19760005342	申请日期	1977.02.11
申请人	FLETCHER SUTCLIFFE WILD LTD	发明人
分类号	E21D17/02;(IPC1-7):E21D15/48	主分类号	E21D17/02
代理机构		代理人
主权项
地址

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