Card – picture – or sign exhibiting – Illuminated sign – Lamp box
Patent
1980-03-10
1982-02-23
Mancene, Gene
Card, picture, or sign exhibiting
Illuminated sign
Lamp box
401522, G09F 1304
Patent
active
043163378
ABSTRACT:
A display device which is provided with one or more opaque display frames for mounting information to be displayed. The or each display frame is provided with one or more transparent areas at which display members containing selected information for display are detachably secured. The display members are opaque with the exception of the information contained thereon to block-off light passing through the transparent areas but not through the information on the members so that the opaque masking effect produced enhances the display to an observer when the display device is suitably illuminated.
REFERENCES:
patent: 1410130 (1922-03-01), Sinclair
patent: 2556779 (1951-06-01), Ross
patent: 2586039 (1952-02-01), Heggedai
patent: 2845734 (1958-08-01), Brady
patent: 2896351 (1959-07-01), Johnson
patent: 2906047 (1959-09-01), Cooke
patent: 3431666 (1969-03-01), Bank
Contreras Wenceslao J.
Lavine Irvin A.
Mancene Gene
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