Improvements in coal cutters,申请号GB19510025939-传众专利搜索

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发明名称	Improvements in coal cutters
摘要
申请公布号	GB712639(A)	申请公布日期	1954.07.28
申请号	GB19510025939	申请日期	1951.11.06
申请人	MAVOR & COULSON LIMITED	发明人	MUNRO ALEXANDER MCGILP
分类号	E21C25/26	主分类号	E21C25/26
代理机构		代理人
主权项
地址

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