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Le Brun Leon
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Le Brun Leon
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Priority to ES16704ApriorityCriticalpatent/ES16704A1/es
Publication of ES16704A1publicationCriticalpatent/ES16704A1/es
Un nuevo procedimiento industrial que tiene por objeto la fabricación de extractos tánicos con toda clase de maderas o materias vegetales que contengan tanino y de producción de celulosa o pasta química de madera para papel con los residuos de los mismos