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Masters of Space; Morse and the Telegraph; Thompson and the Cable; Bell and the Telephone; Marconi and the Wireless Telegraph; Carty and the Wireless Telephone von Towers, Walter Kellogg
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Meister der Raum-Morse und der "Telegraph"; Thompson und das Kabel; Bell und das Telefon; Marconi und die drahtlose Telegraphie; Carty und das Schnurlostelefon; (1917 Stockfotografie - Alamy
Guglielmo Marconi – Wikipedia
Coherer Receiver by Guglielmo Marconi. He used this device for a public demonstration of wireless in
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Guglielmo Marconi – Wikipedia
Meister des Raumes: Morse und der Telegraph; Thompson und die Kabel; Bell und das Telefon; Marconi und der Wireless Telegraph; Carty und dem drahtlosen Telefon;' (1917 Stockfotografie - Alamy
File:Masters of space- Morse and the telegraph; Thompson and the cable; Bell and the telephone; Marconi and the wireless telegraph; Carty and the wireless telephone; (1917) (14752913511).jpg - Wikimedia Commons
Practical physics. Alexander Graham Bell,Washington, D.C. Inventor of the telephone, 1875 Thomas A. Edison, Orange,New Jersey Inventor of the phonograph, the incan-descent lamp, etc.. GuGLiELMO Marconi (Italy) Orville Wright, Dayton, Ohio
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Guglielmo Marconi – Wikipedia
Guglielmo Marconi – Wikipedia
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Masters of Space Morse, Thompson, Bell, Marconi, Carty (English Edition) eBook : Towers, Walter Kellogg: Amazon.de: Kindle-Shop
Guglielmo Marconi – Wikipedia
La aventura de ser inventor: Gutenberg, Bell, Marconi y Gonzalez Camarena : Garcia, Gretel, Torrijos, Eduardo: Amazon.de: Bücher
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Letter from Guglielmo Marconi to Alexander Graham Bell, November 6, 1899 - PICRYL - Public Domain Media Search Engine Public Domain Search