EQUIPMENT AND METHOD FOR MEASURING CONVERGENCE,申请号GB19870029482-传众专利搜索

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发明名称	EQUIPMENT AND METHOD FOR MEASURING CONVERGENCE
摘要
申请公布号	GB2213858(A)	申请公布日期	1989.08.23
申请号	GB19870029482	申请日期	1987.12.17
申请人	* COAL INDUSTRY	发明人	BRIAN GEORGE DAVIDSON * SMART
分类号	E21D23/04;E21F17/18	主分类号	E21D23/04
代理机构		代理人
主权项
地址

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