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Individual
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Individual
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Priority to ES12235ApriorityCriticalpatent/ES12235A2/en
Publication of ES12235A2publicationCriticalpatent/ES12235A2/en
ES12235A1891-06-301891-06-30
A procedure for the direct manufacture of iron and steel, applicable also for the extraction of other metals.
ExpiredES12235A2
(en)