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The Making of American Industrial Research: Science and Business at GE and Bell, 1876–1926 (Cambridge UP, 2002) online; Reich, Leonard S. "Industrial Research and the Pursuit of Corporate Security: The Early Years of Bell Labs" Business History Review 54#4 (1980) pp. 504–529. Reid, Alan J. "A brief history of the smartphone."
11 February 1876: Elisha Gray invents a liquid transmitter for use with a telephone, but he did not make one. 14 February 1876 about 9:30 am: Gray or his lawyer brings Gray's patent caveat for the telephone to the Washington, D.C. Patent Office (a caveat was a notice of intention to file a patent application.
BellSouth, LLC (stylized as BELLSOUTH and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta, Georgia.BellSouth was one of the seven original Regional Bell Operating Companies after the U.S. Department of Justice forced the American Telephone & Telegraph Company to divest itself of its regional telephone companies on January 1, 1984.
Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
In the following states and regions, the primary local carrier is not an RBOC: Lumen Technologies, in addition to its role as the RBOC in the areas of 14 states gained from its acquisition of Qwest, Lumen serves other rural, suburban, and smaller city local exchanges, as well as most of the Las Vegas metropolitan area, covering a total of 16 states.
Cable-television companies began to use their fast-developing cable networks with ducting under the streets of the United Kingdom in the late 1980s to provide telephony services in association with major telephone companies. One of the early cable operators in the UK, Cable London, connected its first cable telephone customer in about 1990.
Telephone directory. A telephone directory, commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a ...
With the old-style architecture lending considerable charm to the district, Underground Atlanta soon became Atlanta's best-known tourist attraction, [7] rivaling Bourbon Street in New Orleans. By 1972, its most profitable year, Underground had 3.5 million visitors and $17 million in sales. In 1973, there were 65 businesses employing 1,000. [11]