Struts for mine roadway supports,申请号GB19810023753-传众专利搜索

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发明名称	Struts for mine roadway supports
摘要
申请公布号	GB2095718(A)	申请公布日期	1982.10.06
申请号	GB19810023753	申请日期	1981.08.04
申请人	SERNI LTD	发明人
分类号	E21D11/28;(IPC1-7):E21D11/28	主分类号	E21D11/28
代理机构		代理人
主权项
地址

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