发明名称 VERÄNDLICHE GRAPHIK UND VERFAHREN ZU IHRER HERSTELLUNG UND VERWENDUNG
摘要 <p>A backlit sign and its method of making and usage is disclosed. The sign has a translucent film with a first image, of color, a light-filtering film with a second image of color or of a graphic, and a masking film with a third image of a graphic. The order of assembly of the films determines whether a change of color or a change in graphics or both is achieved when the assembled sign is backlit.</p>
申请公布号 DE69720807(T2) 申请公布日期 2004.03.11
申请号 DE1997620807T 申请日期 1997.06.03
申请人 MINNESOTA MINING & MANUFACTURING COMPANY, ST. PAUL 发明人 SCHWIETZ, T.
分类号 G09F13/12;G09F13/10;G09F19/12;(IPC1-7):G09F13/04 主分类号 G09F13/12
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