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LEGRAIN S A
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LEGRAIN S A
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Priority to ES1969146864UpriorityCriticalpatent/ES146864Y/en
Publication of ES146864UpublicationCriticalpatent/ES146864U/en
Application grantedgrantedCritical
Publication of ES146864YpublicationCriticalpatent/ES146864Y/en
Foldable box-case, of the type obtained from a flat development punched out of semi-rigid sheet material, presenting a square or rectangular base, and walls of rectangular section, obtained by successive orthogonal folding of four corresponding articulated areas, characterized in that the interlocking between each pair of adjacent walls is performed by providing in one of them a lateral ear folding orthogonally and provided with an extreme orthogonal flange, which is able to fit inside the other wall, and arranging in the area of the latter that its internal face defines a coplanar flange, which, when the assembly is made, penetrates and fits into a linear notch that affects the upper edge and the internal face of the other wall. (Machine-translation by Google Translate, not legally binding)