DRILL HEAD OR BIT,申请号CAD541022-传众专利搜索

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发明名称	DRILL HEAD OR BIT
摘要
申请公布号	CA541022(A)	申请公布日期	1957.05.21
申请号	CAD541022	申请日期
申请人	THOMAS S. HALLETT	发明人	THOMAS S. HALLETT
分类号		主分类号
代理机构		代理人
主权项
地址

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