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Conde Francisco
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Conde Francisco
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Application filed by Conde FranciscofiledCriticalConde Francisco
Priority to ES450ApriorityCriticalpatent/ES450A3/es
Publication of ES450A3publicationCriticalpatent/ES450A3/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.