Photographic code recording and reproducing device,申请号US19440555724-传众专利搜索

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发明名称	Photographic code recording and reproducing device
摘要
申请公布号	US2425122(A)	申请公布日期	1947.08.05
申请号	US19440555724	申请日期	1944.09.25
申请人	PETTY JOHN M;MORSE THOMAS M	发明人	PETTY JOHN M.;MORSE THOMAS M.
分类号	G09B19/26	主分类号	G09B19/26
代理机构		代理人
主权项
地址

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