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automatic vote recorder
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telegragh devices
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several improvments on stock ticker technology
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quadriplex telegrach
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electric pen
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phonograph
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derict current generator
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first three wire central station for distributing electricity
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wireless telegraph
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major improvments on brown and black wax cylinder phonogragh
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motion picture camera
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iron ore interprise
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alkaline storage battery
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new type of dictating machine
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universal electric motor
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diamond point reproducer
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kinetophone
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automatic correction device
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telescribe and dictating phonograph
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first synthetic form of acid