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Clock invented by Eli Terry
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Iron Truss Bridge by Squire Whipple
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Sewing Machine by Elias Howe
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Printing Press by Richard M. Hoe
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Safety pin by Walter Hunt
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Mason jar by John Mason
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Dynamite by Alfred Nobel
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Barbed wire by Joseph Glidden
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Waterwheel by Lester Pelton
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Punch Card Tabulator by Herman Hollerith
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Bottle cap by William Painter
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Carborundum by Edward Goodrich Acheson
