Card punching machine,申请号US19350027634-传众专利搜索

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发明名称	Card punching machine
摘要
申请公布号	US2146283(A)	申请公布日期	1939.02.07
申请号	US19350027634	申请日期	1935.06.21
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	BRYCE JAMES W.
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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