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Un saco con boca reforzada esencialmente caracterizado por el hecho de tener la parte de su cuerpo tubular correspondiente a tal boca o adyacente al borde del saco, reforzada por una ancha zona regruesada por una o más tiras de papel u otro material laminar semejante que queden pegadas a la hoja u hojas de papel constituyentes del saco, preferentemente ocultas entre las mismas o recubiertas por una dobladura de la hoja única cuando en la constitución del saco no se emplee una pluralidad de hojas.
ES0030284U1952-02-271952-02-27Un saco de papel con boca reforzada
PendingES30284U
(es)