Card sorting device,申请号US19400322637-传众专利搜索

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发明名称	Card sorting device
摘要
申请公布号	US2248536(A)	申请公布日期	1941.07.08
申请号	US19400322637	申请日期	1940.03.06
申请人	LOMA JONES	发明人	JONES WALTER LELAND
分类号	G06K21/04	主分类号	G06K21/04
代理机构		代理人
主权项
地址

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