Sample display folder,申请号US19340739522-传众专利搜索

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发明名称	Sample display folder
摘要
申请公布号	US1991161(A)	申请公布日期	1935.02.12
申请号	US19340739522	申请日期	1934.08.13
申请人	IMPERIAL MANUFACTURING CO.	发明人	KRETCHMER OTTO
分类号	G09F5/04	主分类号	G09F5/04
代理机构		代理人
主权项
地址

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