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Thomas Edison
描述
Thomas Edison, seen late in life in this video, was the most famous inventor in American history. Though he is best known for his invention of the phonograph and incandescent electric light, Edison took out a world record of 1,093 patents (singly or jointly) in a variety of fields.
http://www.britannica.com/EBchecked/topic/179233/Thomas-Alva-Edison
http://www.britannica.com/EBchecked/topic/179233/Thomas-Alva-Edison
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