Rotary Cutter Heads for Mining Machines,申请号GB19660016220-传众专利搜索

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发明名称	Rotary Cutter Heads for Mining Machines
摘要
申请公布号	GB1172531(A)	申请公布日期	1969.12.03
申请号	GB19660016220	申请日期	1966.04.13
申请人	COAL INDUSTRY (PATENTS) LIMITED	发明人	ALBERT GRAHAM FRENCH;BARRIE DAVIES
分类号	E21C35/23	主分类号	E21C35/23
代理机构		代理人
主权项
地址

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