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Individual
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Individual
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Priority to ES1980252818UpriorityCriticalpatent/ES252818Y/en
Publication of ES252818UpublicationCriticalpatent/ES252818U/en
Application grantedgrantedCritical
Publication of ES252818YpublicationCriticalpatent/ES252818Y/en
New didactic element, characterized essentially by being constituted by a supporting frame that presents a front opening in a suitable way to the best visibility of a graphic housed in its bosom and supported internally in a backing sheet, opaque and resistant, and externally in a transparent sheet of suitable material that allows the passage of light through it in the longitudinal direction; and because laterally to these sheets there are luminous foci, preferably of phosphorescent light, whose light will penetrate longitudinally through said transparent sheet, illuminating the lines, drawings and the like, made on it. (Machine-translation by Google Translate, not legally binding)
ES1980252818U1980-09-061980-09-06
NEW EDUCATIONAL ELEMENT
ExpiredES252818Y
(en)
Improvements in the illumination systems of letters, signs and graphics of fluorescent material. (Machine-translation by Google Translate, not legally binding)