Improvements in or relating to mine roof supports,申请号GB19650013172-传众专利搜索

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发明名称	Improvements in or relating to mine roof supports
摘要
申请公布号	GB1068355(A)	申请公布日期	1967.05.10
申请号	GB19650013172	申请日期	1965.03.29
申请人	GULLICK LIMITED	发明人
分类号	E21D15/58;E21D17/02;E21D17/054;E21D23/00;F15B3/00	主分类号	E21D15/58
代理机构		代理人
主权项
地址

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