Coal-cutting machines,申请号GB19560005385-传众专利搜索

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发明名称	Coal-cutting machines
摘要
申请公布号	GB859874(A)	申请公布日期	1961.01.25
申请号	GB19560005385	申请日期	1956.02.21
申请人	HOLLYBANK ENGINEERING COMPANY LIMITED	发明人	LEEK IVAN GEORGE ELMER
分类号	E21C27/24	主分类号	E21C27/24
代理机构		代理人
主权项
地址

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