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Individual
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Individual
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Priority to ES25119ApriorityCriticalpatent/ES25119A1/en
Publication of ES25119A1publicationCriticalpatent/ES25119A1/en
ES25119A1899-11-241899-11-24
Improvements in the chemical process for the treatment of lead minerals and in the way to obtain metallic lead.
ExpiredES25119A1
(en)