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*http://en.wikipedia.org/wiki/History_of_radio
 
*http://en.wikipedia.org/wiki/History_of_radio
 
*http://earlyradiohistory.us/index.html
 
*http://earlyradiohistory.us/index.html
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*http://en.wikisource.org/wiki/The_True_Wireless
    
==Quellennachweise==
 
==Quellennachweise==
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