Lantern slide folder,申请号US19410383269-传众专利搜索

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发明名称	Lantern slide folder
摘要
申请公布号	US2277969(A)	申请公布日期	1942.03.31
申请号	US19410383269	申请日期	1941.03.14
申请人	GRANT JOSEPH E	发明人	GRANT JOSEPH E.
分类号	G03B23/12	主分类号	G03B23/12
代理机构		代理人
主权项
地址

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