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SAMUEL MORSE: Prvi je demonstrirao telegraf
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Samuel Morse telegraf (1).jpg
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GL Archive / Alamy / Alamy / Profimedia
GL Archive / Alamy / Alamy / Profimedia 
Samuel Morse telegraf (2).jpg
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Mick Sinclair / Alamy / Profimedia
Mick Sinclair / Alamy / Profimedia 
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Erik Bohr / akg-images / Profimedia
Erik Bohr / akg-images / Profimedia 
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