Quotation projecting apparatus,申请号US19300437962-传众专利搜索

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发明名称	Quotation projecting apparatus
摘要
申请公布号	US1996758(A)	申请公布日期	1935.04.09
申请号	US19300437962	申请日期	1930.03.22
申请人	NEWS PROJECTION CORPORATION	发明人	EITZEN AUGUST D.
分类号	G03B21/134	主分类号	G03B21/134
代理机构		代理人
主权项
地址

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