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Mejoras introducidas en el objeto de la patente principal nº 240.855 sobre perfeccionamientos introducidos en los sistemas de cambio de marchasaplicables a motocarros y similarescaracterizadas porque su aplicación se verifica con respecto a las cajas de cambio normales como nuevo método entre los sistemas a fin de doblar el número de marchas en todas las relaciones de piñonesa excepción de la llamada directa de la que por hallarse todos los mecanismos de engrane en zona neutra no juegan.
ES0246939A1959-01-301959-01-30Perfeccionamientos introducidos en los sistemas de cambio de marchas, aplicables a motocarros y similares
ExpiredES246939A2
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