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Priority to ES46289ApriorityCriticalpatent/ES46289A1/es
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ES46289A1909-09-071909-09-07Un procedimiento para el aprovechamiento de los residuos de los molinos de arroz y de las fábricas de descascarillado.
ExpiredES46289A1
(es)
Un procedimiento para la separación del estaño de la hoja de lata y sus derivados y aprovechamiento de los residuos de la operación para la fabricación de aceros.