Il vero inventore della radio : Gualandi, Lodovico, Gualandi, Lodovico: Amazon.de: Bücher
Alexander Popov Inventor of Radio (Men of Russian Science) - Radovsky, M: 9780898753073 - AbeBooks
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Guglielmo Marconi, (1874-1937), Italian inventor of the radio telegraph system, c. 1920's. by
Stagetec Asia - In 1894 the young Italian inventor Guglielmo Marconi began working on the idea of building a commercial wireless telegraphy system based on the use of Hertzian waves (radio waves),
Kid inventor assambling radio control robot. Close up Holding tools and DIY robot Stock-Foto | Adobe Stock
USA: Edwin Howard Armstrong (1890-1954), Elektroingenieur und Funkerfinder demonstriert seinen superregenerativen Empfänger, New York, 1922
Charles Herrold, Inventor of Radio Broadcasting : Adams, Mike: Amazon.de: Bücher
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1896 , ITALIEN : der italienische Physiker GUGLIELMO MARCONI ( 1874 - 1937 ) im Alter von 22 Jahren , Erfinder der Funkgeräte , NOBELPREISTRÄGER 1909 für Physik - INVENTORE - FISICA -
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Guglielmo Marconi, radio inventor - Stock Image - H413/0322 - Science Photo Library
USA: Edwin Howard Armstrong (1890-1954), Elektroingenieur und Funkerfinder demonstriert seinen superregenerativen Empfänger, New York, 1922 by
Guglielmo Marconi, radio inventor - Stock Image - H413/0359 - Science Photo Library
Zenith radio | Old vintage radio communication 1950 1960 1970s Stock-Foto | Adobe Stock
Professor Henri Chretien, inventor of CinemaScope, gives a radio interview on VOICE OF AMERICA, prio
