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Boyer Etienne
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Boyer Etienne
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Application filed by Boyer EtiennefiledCriticalBoyer Etienne
Priority to ES28634ApriorityCriticalpatent/ES28634A1/es
Publication of ES28634A1publicationCriticalpatent/ES28634A1/es
Un procedimiento químico perfeccionado para separar los componentes metálicos de los pedregosos en los minerales, por medio de los aparatos que se describen.