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Individual
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Individual
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Priority to ES10939ApriorityCriticalpatent/ES10939A1/es
Publication of ES10939A1publicationCriticalpatent/ES10939A1/es
ES10939A1890-06-181890-06-18Perfeccionamientos en los indicadores para frenos de aire de los coches y vagones de caminos de hierro.
ExpiredES10939A1
(es)
Aparatos perfeccionados que tienen su aplicación en los trenes de Ferrocarril provistos de frenos neumáticos para que los pasajeros puedan hacer señales a los maquinistas y conductores o guarda-frenos.