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5
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What did LeaMarcus A. Thompson invent?
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6
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What did hanson crocket invent ?
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7
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What did thomas adams invent?
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8
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What did the maya invent ?
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9
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What did richard drew invent?
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10
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What did horace mann invent ?
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1
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What did whitcomb l. judson invent ?
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2
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What did george de mestral invent ?
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3
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What did conrad gesner invented?
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4
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What did adolf fick ?
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