CREATE TABLE table_name_36 (launched VARCHAR(255), builder VARCHAR(255), laid_down VARCHAR(255))
when was the ship launched when it was laid down 20 october 1924 and built by fujinagata shipyards, japan?
    
SQL: SELECT launched FROM table_name_36 WHERE builder = "fujinagata shipyards, japan" AND laid_down = "20 october 1924"