"Radio\u00E5ret 1931"@sv . . . . . . . "1111729440"^^ . . . . . . . . . . . . "8824"^^ . . . . . . . . . . . . . . . . "9451586"^^ . . . . . . . . . . . . . . . . . . . . . . . . . "The year 1931 saw a number of significant events in radio broadcasting history."@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "1931 in radio"@en . . "The year 1931 saw a number of significant events in radio broadcasting history."@en . . .