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All Patents of Type: plows or ploughs
Patents 1 - 15 of 257
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177XJun. 26, 1797C. NewboldPloughs (cast iron plough)plows or ploughs
292XMay 19, 1800R. SmithMould board plowplows or ploughs
565XJul. 12, 1804J. DeaverPlowplows or ploughs
743XApr. 01, 1807D. PeacockPloughplows or ploughs
803XNov. 18, 1807S. VintonPlough harrowplows or ploughs
822XFeb. 24, 1808H. HarrisPloughplows or ploughs
955XNov. 25, 1808R.B. ChenowethImprovement in plowsplows or ploughs
1,108XJul. 18, 1809F. WoodwardPlanting ploughplows or ploughs
1,339XJul. 13, 1810S. HallDraining ploughplows or ploughs
1,564XAug. 20, 1811J. SanfordVarying the motion of ploughplows or ploughs
1,576XSep. 07, 1811N. TurbuttPloughplows or ploughs
1,643XJan. 11, 1812J.(. KlayPloughplows or ploughs
1,644XJan. 11, 1812R. TousleyPloughplows or ploughs
1,879XFeb. 08, 1813J. SietzPloughplows or ploughs
1,932XMay 28, 1813S. TousleyBull ploughplows or ploughs
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