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Patents for Benjamin Dearborn
Patents 1 - 6 of 6
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
234XFeb. 14, 1799B. DearbornImprovement in Steelyards
247XApr. 30, 1799B. DearbornDouble centered mill for wind or water
  581XOct. 29, 1804B. DearbornImprovement in candlesticks
866XApr. 29, 1808B. DearbornCombination Rule/Bevel
  2,618XJun. 20, 1816B. DearbornAlternate lift for bricks and mortar
  3,089XMar. 24, 1819B. DearbornImprovement on his balance
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