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Individual
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Individual
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Priority to ES55162ApriorityCriticalpatent/ES55162A1/es
Publication of ES55162A1publicationCriticalpatent/ES55162A1/es
ES55162A1913-03-221913-03-22Perfeccionamientos en aparatos de seguridad para la circulación de trenes por las vías férreas llamados aparatos "H".
ExpiredES55162A1
(es)