Combined tabulating and punching mechanism,申请号US19340730549-传众专利搜索

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发明名称	Combined tabulating and punching mechanism
摘要
申请公布号	US2107030(A)	申请公布日期	1938.02.01
申请号	US19340730549	申请日期	1934.06.14
申请人	REMINGTON RAND INC.	发明人	DREHER ELMER H.
分类号	G06C11/08	主分类号	G06C11/08
代理机构		代理人
主权项
地址

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