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Shaw Lawrence Dow Butters
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Shaw Lawrence Dow Butters
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Priority to ES2380ApriorityCriticalpatent/ES2380A1/es
Publication of ES2380A1publicationCriticalpatent/ES2380A1/es
Mejoras en los aparatos para extraer el oro y la plata de los minerales que los contienen, por medio de la acción combinada de la electricidad y el mercurio.