Improvements in or relating to cutter picks,申请号GB19640035767-传众专利搜索

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发明名称	Improvements in or relating to cutter picks
摘要
申请公布号	GB1114156(A)	申请公布日期	1968.05.15
申请号	GB19640035767	申请日期	1964.09.01
申请人	COAL INDUSTRY (PATENTS) LIMITED	发明人	BELL HUGH GRAHAM
分类号	E21C35/183	主分类号	E21C35/183
代理机构		代理人
主权项
地址

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