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Mecanismo de cambio de marcha que se caracteriza por dos trenes de ruedas sobre dos ejes paralelos en el que las ruedas que engranan constantemente van fijadas las del eje secundario y locas las del eje motor al cual se fijen a voluntad mediante unos dientes que van alojados en el mismo eje motor.
ES0179541A1947-08-161947-08-16Un mecanismo de cambio de marcha
ExpiredES179541A1
(es)