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Patents Granted on 1817-08-??
Patents 1 - 15 of 17
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NumberDatePatenteeTitleType
2,819XAug. 01, 1817J.C. HelmePumps and pump boxespumps
2,820XAug. 07, 1817C. DarmandHydraulic machine
2,821XAug. 08, 1817J. CarverVeterinary ventilated bath
2,822XAug. 08, 1817W.B. Winsor, H. FranklinMode of preparing yarn for weaving
2,823XAug. 08, 1817D. Treadwell, P. DowScrew machinescrew machines
2,824XAug. 11, 1817J. AndrewsCutting wood and metal screw
2,825XAug. 11, 1817J. AndrewsVertical axes, steps, or ink and gudgeon for millsaxes
2,826XAug. 13, 1817E. RemingtonCloth shearing machinesplitting and shearing machinery
2,827XAug. 13, 1817H. Gay, W. AyresStraw Cutting Machinehay or straw cutters
2,828XAug. 15, 1817C. SeamanHead oar for steering
2,829XAug. 16, 1817W. SalisburyConstructing fire placesfireplaces
2,830XAug. 22, 1817R.B. RichardsonJapanned bellowsfireplace tools
2,831XAug. 22, 1817J. KendanBleaching cotton and linen yarn
2,832XAug. 23, 1817S. SmithThreshing machinemiller
2,833XAug. 27, 1817J. HeavinSteam enginesteam engines
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