List of people from Ohio
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Elisha Gray
Reis telephone
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Timeline of the telephone
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Ganges river dolphin
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1876 in science
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1835 in science
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Antonio Meucci
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1901 in science
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Telharmonium
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Servomechanism
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Electronic keyboard
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Image scanner
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Music of Ohio
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Telautograph
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Johann Philipp Reis
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Western Electric
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List of electrical engineers
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Barnesville, Ohio
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Graphics tablet
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Microphone
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Gray code
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Louisiana Purchase Exposition
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1835
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1876
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1901
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Telephone
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February 14
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Fax
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Electronic musical instrument
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Electrical telegraph
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August 2
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Alexander Graham Bell
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