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Patents Granted on 1817-08-11
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
2,824XAug. 11, 1817J. AndrewsCutting wood and metal screw
2,825XAug. 11, 1817J. AndrewsVertical axes, steps, or ink and gudgeon for millsaxes
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