Card – picture – or sign exhibiting – Display card – Having a curved display panel
Patent
1974-12-31
1976-11-30
Pitrelli, John F.
Card, picture, or sign exhibiting
Display card
Having a curved display panel
350105, G09F 1316
Patent
active
039940861
ABSTRACT:
A reflex light reflector or reflective structure whereby incident light is reflected from a reflective layer on the rear of the structure through a plurality of small transparent balls, wherein a transparent flat coating layer is formed over the surfaces of said balls, said layer being composed of two sub-layers between which is provided a printed surface using fine lines for printing, such that the printed matter is visible in scattered light in the daytime but invisible in reflected light in the nighttime.
REFERENCES:
patent: 2407680 (1946-09-01), Palmquist et al.
patent: 3222986 (1965-12-01), Altman
patent: 3413058 (1968-11-01), Tung et al.
patent: 3708378 (1973-01-01), Tung
Pitrelli John F.
Seibu Polymer Kasei Kabushiki Kaisha
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