SEMI-TRANSPARENT PLATES FOR INCREASED IMAGE CONTRAST,申请号GB19680042317-传众专利搜索

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发明名称	SEMI-TRANSPARENT PLATES FOR INCREASED IMAGE CONTRAST
摘要
申请公布号	GB1237697(A)	申请公布日期	1971.06.30
申请号	GB19680042317	申请日期	1968.09.05
申请人	RANK XEROX LIMITED	发明人
分类号	G03B27/54;G03B27/62	主分类号	G03B27/54
代理机构		代理人
主权项
地址

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