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Priority to ES0254203ApriorityCriticalpatent/ES254203A2/es
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Mejoras introducidas en el objeto de la patente principal nº 248850 sobre nuevo procedimiento de fabricación de puertas, caracterizadas porque la pluralidad de listones que dan lugar a la formación del armazón de la puerta, son recubiertos por sus testas y laterales exteriores mediante listones de mayor resistencia, lo cual dá lugar a la formación de un bastidor dentro del cual se conforman los expresados listones y consiguiéndose por tanto una mayor solidez.
ES0254203A1959-12-151959-12-15Nuevo procedimiento de fabricaciën de puertas
ExpiredES254203A2
(es)