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Alexander Graham Bell. Bell's March 10, 1876, laboratory notebook entry describing his first successful experiment with the telephone. Alexander Graham Bell had pioneered a system called visible speech, developed by his father, to teach deaf children. In 1872 Bell founded a school in Boston, Massachusetts, to train teachers of the deaf.
- History of the telephone
Alexander Graham Bell was awarded the first U.S. patent for...
- Alexander Graham Bell
c Two died soon after birth. Alexander Graham Bell ( /...
- History of the telephone
Nov 9, 2009 · On March 7, 1876, Bell was granted his telephone patent. A few days later, he made the first-ever telephone call to Watson, allegedly uttering the now-famous phrase, “Mr. Watson, come here. I ...
The word telephone, from the Greek roots tēle, “far,” and phonē, “sound,” was applied as early as the late 17th century to the string telephone familiar to children, and it was later used to refer to the megaphone and the speaking tube, but in modern usage it refers solely to electrical devices derived from the inventions of Alexander Graham Bell and others.
Media in category "Invention of the telephone". The following 9 files are in this category, out of 9 total. A Bell drawing showing a liquid transmitter from March 8, 1876.jpg 794 × 801; 109 KB. Bell's drawing for Patent 161739 granted by U.S. PTO in April 1875.jpg 1,467 × 469; 49 KB. Bell's drawing of the liquid transmitter that transmitted ...
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May 21, 2021 · The Telephone Network Is Born. Bell patented his device on March 7, 1876, and it quickly began to spread. By 1877, construction of the first regular telephone line from Boston to Somerville, Massachusetts, had been completed. By the end of 1880, there were over 49,000 telephones in the United States. The following year, telephone service ...
