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Priority to ES30464ApriorityCriticalpatent/ES30464A1/es
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ES30464A1902-10-061902-10-06Un procedimiento mejorado para el revestimiento de los recipientes que se emplean en los trabajos metalúrgicos.
ExpiredES30464A1
(es)
Un procedimiento para la separación del estaño de la hoja de lata (hoja lata) y sus derivados (recortes, botes y envases) y aprovechamiento de la chatarra de hierro que resulta para la fabricación de sales de hierro.