Improvements in or connected with mining machines,申请号GB19450001538-传众专利搜索

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发明名称	Improvements in or connected with mining machines
摘要
申请公布号	GB599195(A)	申请公布日期	1948.03.08
申请号	GB19450001538	申请日期	1945.01.18
申请人	MAVOR & COULSON, LIMITED;JOHN BRIDIE MAVOR	发明人
分类号	E21C35/12	主分类号	E21C35/12
代理机构		代理人
主权项
地址

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