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Steam Engine by James Watt
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Cotton Gin by Eli Whitney
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Interchangeable Parts by Eli Whitney
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Steamboat by Robert Fulton
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Lowell Mills by Francis Lowell
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Mechanical Reaper by Cyrus McCormick
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Steel Plow by John Deere
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Telegraph by Samuel Morse
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Sewing Machine by Isaac Singer and Elias Howe
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Steel Process by Henry Bessemer