Perfectionnements aux machines à multiplier,申请号FRD842777-传众专利搜索

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发明名称	Perfectionnements aux machines à multiplier
摘要
申请公布号	FR842777(A)	申请公布日期	1939.06.19
申请号	FRD842777	申请日期	1938.08.30
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人
分类号	G06F7/40;G06F7/46;G06K19/00	主分类号	G06F7/40
代理机构		代理人
主权项
地址

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