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Hahlo & Liebreich
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Hahlo & Liebreich
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Application filed by Hahlo & LiebreichfiledCriticalHahlo & Liebreich
Priority to ES7417ApriorityCriticalpatent/ES7417A1/es
Publication of ES7417A1publicationCriticalpatent/ES7417A1/es
Un procedimiento mecánico para mejorar los sistemas de ferrocarriles que marchan por la acción de la gravedad conocidos con el nombre de Montañas rusas.