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WOTHCHKE JOHANNES
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WOTHCHKE JOHANNES
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Priority to ES0162547ApriorityCriticalpatent/ES162547A2/es
Publication of ES162547A2publicationCriticalpatent/ES162547A2/es
Mejoras introducidas en el objeto de la patente principal número 147.835 caracterizadas porque sobre la superficie desnuda de una masa fundida de hierro se rocía o espolvorea al mismo tiempo que el carbono o después de agregarlo el óxido metálico o los minerales.
ES0162547A1943-07-301943-07-30Mejoras introducidas en el objeto de la patente principal
ExpiredES162547A2
(es)