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Kellogg Switchboard & Supply Company
Kellogg Switchboard & Supply Company was a major manufacturer of telephone exchange equipment. It was founded in Chicago, Illinois, by Milo G. Kellogg, an electrical engineer. Along with Western Electric (who supplied the Bell system), Automatic Electric (who supplied General Telephone) and Stromberg-Carlson, it controlled the nation's supply of telephone equipment until after World War II.〔Cohen, ''The Racketeer's Progress: Chicago and the Struggle for the Modern American Economy, 1900-1940,'' 2004.〕
==History==
Kellogg was born into a prominent and wealthy New England family. He attended prep school, and received two degrees in engineering from the University of Rochester. He married into one of Chicago's most prestigious families, and relocated to Illinois.〔''Chicago: Pictoral and Biographical,'' 1912.〕
In the 1880s, Kellogg had been a manager at Western Electric (he was superintendent of Western Electric's Chicago manufacturing and research plant) and the Southern Telephone and Telegraph Company.〔Adams and Butler, ''Manufacturing the Future: A History of Western Electric,'' 1999.〕 In 1897, with expiring, Kellogg set up his own manufacturing firm, Kellogg Switchboard & Supply Company. Kellogg himself held more than 150 patents, and he had invented and patented the Divided Multiple telephone switchboard. The new company manufactured the equipment as its flagship product. This switchboard offered greater flexibility and efficiency than earlier designs in handling large numbers of telephone subscribers at each urban exchange.〔"Kellogg Switchboard & Supply Co.," ''Dictionary of Leading Chicago Businesses (1820-2000),'' 2005.〕 Kellogg Switchboard & Supply primarily supplied local independent telephone companies.〔
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