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File:Pakistanflag.gif [[category:flags]](388 × 260 (4 KB)) - 10:46, 19 April 2013File:Romania flag.jpg [[category:flags]](452 × 302 (26 KB)) - 10:34, 19 April 2013File:Serbia flag.jpg [[category:flags]](400 × 246 (8 KB)) - 10:52, 19 April 2013File:SouthAfricaflag.gif [[category:flags]](387 × 260 (5 KB)) - 10:55, 19 April 2013File:SouthAfricaflag.jpg [[category:flags]](387 × 260 (11 KB)) - 10:48, 19 April 2013File:Switzerlandflag.gif [[category:flags]](388 × 260 (3 KB)) - 10:31, 19 April 2013File:Texasflag.jpg [[category:flags]](388 × 260 (8 KB)) - 10:17, 19 April 2013File:UKflag.gif [[category:flags]](516 × 260 (7 KB)) - 11:29, 19 April 2013File:USAflag.gif [[category:flags]](490 × 260 (7 KB)) - 11:29, 19 April 2013File:Yugoslavia flag.png [[category:flags]](600 × 300 (8 KB)) - 10:30, 19 April 2013- ... to link the various elements. During the 20th Century communications used flags, morse code by radio, line and lights, voice and teletype (teleprinter) by78 KB (12,323 words) - 15:24, 15 March 2013