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Individual
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Individual
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Priority to ES0070963UpriorityCriticalpatent/ES70963U/en
Publication of ES70963UpublicationCriticalpatent/ES70963U/en
Corrugated covered cardboard, which is essentially characterized by being two flat sheets of material, color and appropriate dimensions, among which appears a third sheet of the same nature but bent in a zigzag, with a straight line whose edges are joined, by means of an adhesive, to the aforementioned outer pieces, the central component being arranged, in which parallel channels of triangular action are defined, with a certain obliquity with respect to any of the axes of symmetry of the piece of cardboard, that is to say with the edges of the same obliquity that gives the whole a high resistance to bending. (Machine-translation by Google Translate, not legally binding)
ES0070963U1958-12-311958-12-31Wavy covered cardboard (Machine-translation by Google Translate, not legally binding)
PendingES70963U
(en)
Corrugated cardboard with double trajectory perpendicular, diagonal, inverse and reciprocal in terms of its flat surfaces (Machine-translation by Google Translate, not legally binding)