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Individual
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Individual
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Priority to ES0048017UpriorityCriticalpatent/ES48017U/en
Publication of ES48017UpublicationCriticalpatent/ES48017U/en
Pocket viewfinder for transparencies, characterized by the fact that it is formed by a closed box, inside which is a set of electric batteries that feed a bulb that is arranged in front of a window made in one of the faces of the box, being this window closed externally by means of a transversally displaceable part supporting a converging lens arranged to serve as a magnifying glass, giving an enlarged view of the transparency, which is introduced through a slit between the bulb and the converging lens. (Machine-translation by Google Translate, not legally binding)
ES0048017U1955-05-131955-05-13Pocket viewfinder for transparencies (Machine-translation by Google Translate, not legally binding)
PendingES48017U
(en)