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Priority to ES0072651UpriorityCriticalpatent/ES72651Y/en
Publication of ES72651UpublicationCriticalpatent/ES72651U/en
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Publication of ES72651YpublicationCriticalpatent/ES72651Y/en
Stereoscopic album of interchangeable views, essentially characterized by comprising a set of interchangeable blades whose clamping is verified on the side by a pin located for that purpose in a lower fin of the album, this pin presenting a screw head for easy ordering and change of views in an indeterminate number, with a flap located on the side opposite to the pin and provided with a perforation that acts as a pulling element to separate the sheets of the album in its inoperative phase, being of preferential application for stereoscopy on black paper in colors and transparency. (Machine-translation by Google Translate, not legally binding)
ES0072651U1959-03-301959-03-30
Stereoscopic album of interlinked views
ExpiredES72651Y
(en)