Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority to ES142516UpriorityCriticalpatent/ES142516U/en
Publication of ES142516UpublicationCriticalpatent/ES142516U/en
Enhanced postal card characterized because its front is a sheet of transparent plastic material in which according to a suitable technological process have been recorded on both sides the parallel micro-scale areas that determine the planes of different inclination in which the stereograms are fixed that superimposed they give the sensation of three-dimensional relief and that attached to the back face of the aforementioned transparent sheet are protected by a sheet of cardboard adhering light color which is endowed with a high flexibility due to the application on the back surface le a plastic layer that kills the pore by completely waterproofing it in an avoidance of moisture damaging the stereograms. (Machine-translation by Google Translate, not legally binding)
ES142516U1968-10-231968-10-23Perfect postcard (Machine-translation by Google Translate, not legally binding)
PendingES142516U
(en)