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Jethro Tull invents the seed drill.
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Andrew Meikle invents the threshing machine
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Eli Whitney patents the cotton gin.
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Francois Appert invented the preserving jar for food.
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Charles Nwebol patented the first cast iorn plow
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Thomas Moore of Maryland invents the icebox refrigerator
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Jethro Wood patents iron plow with interchangeable parts
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U.S. food canning industry established
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1849 Mixed chemical fertilizers sold commercially
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