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Priority to ES1971168301UpriorityCriticalpatent/ES168301Y/en
Publication of ES168301UpublicationCriticalpatent/ES168301U/en
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Publication of ES168301YpublicationCriticalpatent/ES168301Y/en
Improved filter, characterized for being constituted by a piece of metallic plate, endowed with a succession of cavities of pyramidal shape, with its perforated bottom, equal to each other and regularly spaced, arranged according to two series of alignments perpendicular to each other, whose cavities are obtained by displacement of the material, in a pressing operation of the plate between the surface, perfectly smooth, of a countermatrix, and the surface of a matrix, endowed with a succession of small perimetric projections, whose height coincides substantially with the thickness of the plate . (Machine-translation by Google Translate, not legally binding)
Manufacturing procedure for the structural and at will configuration in the wood, veteados, knots and other figures. (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of useful press molds for covering the edges or profiles of molded parts or plates of organic materials (Machine-translation by Google Translate, not legally binding)