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Prieto Sebastian
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Prieto Sebastian
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Priority to ES368ApriorityCriticalpatent/ES368A1/es
Publication of ES368A1publicationCriticalpatent/ES368A1/es
Sistema perfeccionado y aparato para regularizar y aumentar la eficacia de los frenos para trenes de ferrocarril y para comprobar e indicar la velocidad de las ruedas de locomotora.