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Learn about the telephone, an instrument for transmitting and receiving sound by electricity, from its invention by Alexander Graham Bell in 1876 to its modern digital design. Explore the components, history, and development of the telephone and the public switched telephone network.
Sep 20, 2024 · Learn about the history and evolution of the telephone, from its origins in sound and telegraphy to its invention by Alexander Graham Bell and Elisha Gray. Discover how Bell patented his device, founded his company, and created the first telephone network.
- Mary Bellis
Learn about the invention, development and evolution of the telephone, a device that converts sound into electronic signals and transmits them over a distance. Explore the different kinds of telephones, from cordless to smartphones, and their features and functions.
Learn about the history and controversies of the telephone invention, from the string telephone to the electromagnetic telephone. Find out who claimed to have invented the telephone first, and how they were involved in lawsuits and patent disputes.
Feb 26, 2023 · Learn about the history and controversy of the telephone's invention, and how Alexander Graham Bell won the patent and fame over his competitors. Find out how Bell's device differed from...
- Joe Phelan
Telephone - Invention, Alexander Graham Bell, Communication: Beginning in the early 19th century, several inventors made a number of attempts to transmit sound by electric means. The first inventor to suggest that sound could be transmitted electrically was a Frenchman, Charles Bourseul, who indicated that a diaphragm making and breaking contact with an electrode might be used for this purpose ...
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.
