Drill press attachment,申请号US19500203504-传众专利搜索

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发明名称	Drill press attachment
摘要
申请公布号	US2642760(A)	申请公布日期	1953.06.23
申请号	US19500203504	申请日期	1950.12.29
申请人	GOLDBERG DAVID N	发明人	GOLDBERG DAVID N.
分类号	B23B39/00;B23B45/14	主分类号	B23B39/00
代理机构		代理人
主权项
地址

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