Metal detector- Alexander Graham Bell - YouTube
Presidential Trivia on Twitter: "In 1881, Dr. Alexander Graham Bell used the metal detector he invented to search for the bullet in President Garfield. The device is now part of the Smithsonian's
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Alexander Graham Bell's metal detector
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Alexander Graham Bell (1847 – 1922) was an Scottish-born scientist, engineer and innovator who is credited with inventing the first practical telephone in 1876.…
The President is somewhat restless…”: Enter Bell – Circulating Now from the NLM Historical Collections
Alexander Graham Bell's metal detector
This Famous Inventor Created the Metal Detector to Save a President's Life
Alexander Graham Bell's metal detector
History of Metal Detectors - Kellyco Metal Detectors
G.E (Genius Engineers) - MasKingTapE http://inventors.about.com/od/pstartinventions/a/Metal_Detector.htm In 1881, Alexander Graham Bell invented the first metal detector. As President James Garfield lay dying of an assassin's bullet, Alexander Graham ...
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Alexander Graham Bell developed a metal detector as a last ditch effort to locate a bullet lodged in the chest of American President James Garfield in 1881 | The Vintage News
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Biography of Alexander Graham Bell, Inventor
Alexander Graham Bell's metal detector
