Hollow drill sharpener,申请号US19330698660-传众专利搜索

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发明名称	Hollow drill sharpener
摘要
申请公布号	US2005827(A)	申请公布日期	1935.06.25
申请号	US19330698660	申请日期	1933.11.18
申请人	HARRIS SEYBOLD POTTER COMPANY	发明人	LEWIS HARRY I.;SEYBOLD FREDERICK W.
分类号	B23P15/32	主分类号	B23P15/32
代理机构		代理人
主权项
地址

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