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Individual
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Individual
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Priority to ES20432ApriorityCriticalpatent/ES20432A1/es
Publication of ES20432A1publicationCriticalpatent/ES20432A1/es
ES20432A1897-02-221897-02-22Un procedimiento especial para fabricar los metales galos, notablemente el cobre, el estaño y el aluminio.
ExpiredES20432A1
(es)