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Individual
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Individual
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Priority to ES1967131129UpriorityCriticalpatent/ES131129Y/en
Publication of ES131129UpublicationCriticalpatent/ES131129U/en
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Publication of ES131129YpublicationCriticalpatent/ES131129Y/en
Improved philatelic-postcard case, characterized by the fact of being composed of a rectangular band of suitable laminar material, such as cardboard, which by virtue of three transverse lines of bending, equidistant and parallel, is divided into four contiguous planes, two of which they have practiced a certain number of windows in a symmetrical position with respect to the line of bending that separates them so that, when said planes are attached, both sets of windows are superimposed. (Machine-translation by Google Translate, not legally binding)