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Individual
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Individual
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Priority to ES1971174530UpriorityCriticalpatent/ES174530Y/en
Publication of ES174530UpublicationCriticalpatent/ES174530U/en
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Publication of ES174530YpublicationCriticalpatent/ES174530Y/en
Improved box, characterized by being constituted by a bottom formed by a polygonal frame flattened, sensibly rigid, and by a flexible laminar piece, which in its central area coincides with the outer contour of the frame, which it covers by one. Of their faces, closing the opening thereof, said central area establishing the base of the box, and extending into four wings that bend and adapt to the still uncovered surface of the frame, wrapping it and remaining the margins of the wings bent and inserted between the frame and the base, and thus defining this bottom a depression in which an additional wall, of angular section, which externally coincides with the contour of the depression, and this wall comprising an upward and an interior downward stretch, prolonged this in flaps that bend and overlap the inner face of the base. (Machine-translation by Google Translate, not legally binding)