Bell System

（重定向自Bell Operating Company）

Bell System trademark used by AT&T and affiliated companies from 1921 to 1939

195 Broadway, HQ for most of 20th century

The Bell System was the system of companies, led by the Bell Telephone Company and subsequently by AT&T, which provided telephone services to much of the United States and Canada from 1877 to 1984, at various times as a monopoly. On December 31, 1983, the system was broken up into independent companies by a U.S. Justice Department mandate.

单词	Bell Operating Company
释义	Bell Operating Company 英语百科 Bell System （重定向自Bell Operating Company） The Bell System was the system of companies, led by the Bell Telephone Company and subsequently by AT&T, which provided telephone services to much of the United States and Canada from 1877 to 1984, at various times as a monopoly. On December 31, 1983, the system was broken up into independent companies by a U.S. Justice Department mandate.
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