écran d'indication photochromique,申请号FR19610850795-传众专利搜索

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发明名称	écran d'indication photochromique
摘要
申请公布号	FR1294140(A)	申请公布日期	1962.05.26
申请号	FR19610850795	申请日期	1961.01.26
申请人	THE NATIONAL CASH REGISTER COMPANY	发明人	BROWN GEORGE T.
分类号	G09F13/00	主分类号	G09F13/00
代理机构		代理人
主权项
地址

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