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Technology.          
montage Technology (General).

Invention and Inventions.
Biography.
Exhibitions. Trade Shows. World's Fairs.
ZipperThe Zipper as we now know it was developed by Gideon Sundback, who patented the "Separable Fastener" on March 20, 1917. The word "zipper" was coined by the B.F. Goodrich company when it used the device on a line of rubber galoshes marketed under the trade name "Zipper Boots." George WestinghouseGeorge Westinghouse first gained fame for the railroad air brake, which he patented in 1869. In 1886 he founded the Westinghouse Electric Company in order to commercialize alternating current as the standard for electrical transmission.
World's Columbia Exposition, 1893The World's Columbian Exposition, 1893 (Chicago World's Fair) celebrated the 400th anniversary of Christopher Columbus's landing in America. The Exposition introduced the world to electricity, the telephone, the phonograph, and the Ferris Wheel.  
 
Invention and Inventions. | Biography. | Exhibitions. Trade Shows. World's Fairs.
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