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Conde Francisco
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Conde Francisco
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Application filed by Conde FranciscofiledCriticalConde Francisco
Priority to ES623ApriorityCriticalpatent/ES623A1/es
Publication of ES623A1publicationCriticalpatent/ES623A1/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.