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Graham Bell, the inventor of telephone and metal detector, was born today — Steemit
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Alexander Graham Bell, Metal Detector, 1891 - Stock Image - C043/8920 - Science Photo Library
Image of BELL: METAL DETECTOR, 1881. - Alexander Graham Bell's Metal Detector, Invented In 1881 In Order To Find The Bullet Lodged In President James Garfield's Body. Line Engraving, 19th Century. From
