Perforated record sorting machine,申请号US19340730403-传众专利搜索

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发明名称	Perforated record sorting machine
摘要
申请公布号	US2120355(A)	申请公布日期	1938.06.14
申请号	US19340730403	申请日期	1934.06.13
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	FRONEFIELD LOUIS H.
分类号		主分类号
代理机构		代理人
主权项
地址

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