Portable bit-dressing tool,申请号US19250053636-传众专利搜索

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发明名称	Portable bit-dressing tool
摘要
申请公布号	US1745143(A)	申请公布日期	1930.01.28
申请号	US19250053636	申请日期	1925.08.31
申请人	EMERY A. LOCKE	发明人	BERGQUIST CHAHLES H.
分类号	B21K5/06	主分类号	B21K5/06
代理机构		代理人
主权项
地址

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