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The first telephone directory, printed in New Haven, Connecticut, United States, in November 1878 Telephone directories are a type of city directory . Books listing the inhabitants of an entire city were widely published starting in the 18th century, before the invention of the telephone.
1878: First phone directory printed in Connecticut. Telegraph manager George Coy of New Haven, Connecticut, developed an exchange—the system that allows people to call each other—within a year ...
Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. Elisha Gray, 1876, designed a telephone using a water microphone in Highland Park, Illinois. Tivadar Puskás proposed the telephone switchboard exchange in 1876. Thomas Edison invented the carbon microphone which produced a strong telephone ...
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century, the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up and replaced by a ...
Alexander Graham Bell ( / ˈɡreɪ.əm /, born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885.
Coy in the Bell Telephone Magazine. George Willard Coy (November 13, 1836 – January 15 or 23, 1915) was an American mechanic, inventor and entrepreneur. He ran the first commercial telephone exchange in 1878 and was involved in the production of the first telephone directory.
A telephone number serves as an address for switching telephone calls using a system of destination code routing. [1] Telephone numbers are entered or dialed by a calling party on the originating telephone set, which transmits the sequence of digits in the process of signaling to a telephone exchange.
Kenmore 9392 is a five-pull (1L-4N) small-city telephone number for the Kenmore exchange in Fort Wayne, Indiana. MArket 7032 is a six-digit (2L-4N) telephone number. This format was in use from the 1920s through the 1950s, and was phased out c. 1960. BALdwin 6828 is an urban 3L-4N example, used only in the largest cities before conversion to ...
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