Improvements in or relating to drilling machines,申请号GB19410006021-传众专利搜索

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发明名称	Improvements in or relating to drilling machines
摘要
申请公布号	GB547471(A)	申请公布日期	1942.08.28
申请号	GB19410006021	申请日期	1941.05.09
申请人	LEO RUBINSTEIN	发明人
分类号	B23B41/02	主分类号	B23B41/02
代理机构		代理人
主权项
地址

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