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229910001092metal group alloyInorganic materials0.000title1
ES64177A1917-03-221917-03-22El procedimiento industrial para elaborar, con el auxilio del alto horno, determinadas aleaciones metálicas.
ExpiredES64177A3
(es)
El procedimiento industrial para elaborar, con intervención del horno eléctrico, las aleaciones metálicas denominadas silicospiegel, silico-manganeso o ferro-silico-manganeso.
El procedimiento industrial para elaborar, por mediación del horno eléctrico, ciertas aleaciones metálicas utilizadas en la fabricación de aceros especiales.