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Individual
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Individual
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Priority to ES7356ApriorityCriticalpatent/ES7356A1/es
Publication of ES7356A1publicationCriticalpatent/ES7356A1/es
ES7356A1887-09-201887-09-20Perfeccionamientos en el procedimiento para purificar, endurecer y en general para mejorar notablemente el hierro.
ExpiredES7356A1
(es)