Improvements in and relating to mining machines,申请号GB19540010372-传众专利搜索

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发明名称	Improvements in and relating to mining machines
摘要
申请公布号	GB758051(A)	申请公布日期	1956.09.26
申请号	GB19540010372	申请日期	1955.03.25
申请人	COAL INDUSTRY (PATENTS) LIMITED	发明人	ROUND CHARLES;CHAMBERLAIN WILLIAM ADIN
分类号	E21C27/46	主分类号	E21C27/46
代理机构		代理人
主权项
地址

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