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Priority to ES32840ApriorityCriticalpatent/ES32840A1/es
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ES32840A1903-11-091903-11-09Mejoras en el procedimiento para la reparación magnética de mineral de hierro por medio del aparato que se describe.
ExpiredES32840A1
(es)
Un procedimiento para separar el polvo que no contenga mineral del mineral de hierro de hierro finamente pulverizado por medio del aparato que se describe.
Un procedimiento perfeccionado para la formación o compresión de secciones o trozos de tuberías hechos de chapas u hojas de metal por medio del aparato que se describe.