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Invented by Christopher Sholes, a newspaper editor.
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Sent by Alexander Graham Bell.
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Invented by Thomas Edison
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Invented by Joseph Swan
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Invented by Carl Auer.
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Invented by George Eastman.
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Invented by Valdemar Poulson.
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Invented by King Camp Gillette.
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Invented by William Einthoven.
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Invented by Hans Geiger, and also named for him.