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Mejoras en la patente de invención núm. 244238 por perfeccionamientos en los trenes de estiraje de textiles caracterizado porque los cilindros superior e inferior se han modificado con unos cilindros que presentan unas ranuras axiales rectas o helicoidales de forma cuadrada, cónica, ondulada que engranan entre sí dos a dos eliminando el deslizamiento entre los rodillos.
ES0248503A1959-04-081959-04-08Perfeccionamientos en los trenes de estiraje de textiles
ExpiredES248503A2
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