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Procedimiento de fabricación de un nuevo tipo de cierre de cremallera, caracterizado esencialmente porque a partir de láminas de materia plástico, de naturaleza apropiada, estas se configuran en tiras de dimensiones adecuadas a su finalidad, siendo iguales entre si y las que son sometidas a cortes por secciones longitudinales y posteriormente por un efecto de troquelado, se constituyen cortes interiores establecidos en posición transversal y equidistante.
ES0260231A1960-08-081960-08-08Procedimiento de fabricaciën de un nuevo tipo de cierre de cremallera
ExpiredES260231A1
(es)