Optical cryptographic devices,申请号US19600061270-传众专利搜索

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发明名称	Optical cryptographic devices
摘要
申请公布号	US3178993(A)	申请公布日期	1965.04.20
申请号	US19600061270	申请日期	1960.10.07
申请人	BAUSCH & LOMB INCORPORATED	发明人	FERRIS JOHN T.;MELTZER ROBERT J.
分类号	G02B27/02;G09C5/00	主分类号	G02B27/02
代理机构		代理人
主权项
地址

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