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Patents for Jonathan Swan
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  2,168XJul. 05, 1814J. SwanPloughs
  2,220XNov. 09, 1814J. Swan, R. TousleyBull plough
  3,856XApr. 24, 1824J. SwanCast iron cutter for ploughs
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