ES145968A1 - Perfeccionamientos en los sistemas epicicloidales, especialmente para transmisiones, como los cambios de velocidad progresivos.
- Google Patents
Perfeccionamientos en los sistemas epicicloidales, especialmente para transmisiones, como los cambios de velocidad progresivos.
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ES145968A1938-08-061938-08-06Perfeccionamientos en los sistemas epicicloidales, especialmente para transmisiones, como los cambios de velocidad progresivos.
ExpiredES145968A1
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