Improvements in machines for mining coal and other minerals,申请号GB19510017353-传众专利搜索

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发明名称	Improvements in machines for mining coal and other minerals
摘要
申请公布号	GB706214(A)	申请公布日期	1954.03.24
申请号	GB19510017353	申请日期	1951.07.23
申请人	MAVOR & COULSON LIMITED	发明人	GALLOWAY WILLIAM SHEARER
分类号	E21C25/06;E21C29/16;E21C35/16	主分类号	E21C25/06
代理机构		代理人
主权项
地址

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