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May 6, 2020 · Alexander Graham Bell exhibited the first telephone, and Thomas Alva Edison presented the automatic telegraph, one of more than 1,000 inventions he would patent in his lifetime. Together their inventions changed American life in ways that still affect us today.
A rare manuscript by the inventor of the telephone, showing the essentials of his device. The sketch was drawn in Boston and given to his cousin in Australia, and later donated to the Library of Congress.
Feb 20, 2014 · 5 years ago. You can see the original tutorial of How to draw Alexander Graham Bell at http://www.drawingnow.com/tutorials/113528/how-to-draw-alexander-graham-bell/.
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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.
Alexander Graham Bell's telephone patent drawing and oath, officially approved March 7, 1876. An excerpt from The History of the Telephone by Herbert Casson about Alexander Graham Bell’s breakthrough experiment, 1910.
Alexander Graham Bell's telephone patent drawing and oath, officially approved March 7, 1876.
