KANSAS CITY, Mo. (KCTV) - December 24, 1877. Thomas Edison files a patent for the first phonograph capable of recording and playing sound. The groundbreaking product was a byproduct of Edison’s work ...
Until Thomas Alva Edison tackled the problem of multiple telegraph messages, the most that could be sent over one wire at a time was two. Edison increased the number to four. Later, Western Union ...
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage ...
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage ...
As the practical use of electricity spread worldwide, Edison was a driving force. In 1889, he consolidated his several companies to form Edison General Electric. Three years later, it became General ...
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