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Individual
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Priority to ES338734ApriorityCriticalpatent/ES338734A1/es
Publication of ES338734A1publicationCriticalpatent/ES338734A1/es
ES338734A1967-03-311967-03-31Un procedimiento para la fabricacion de pelicula tubular dematerial plastico de dos capas de colores distintos.
ExpiredES338734A1
(es)