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Patents for Christian Bergh
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
  1,544XJul. 02, 1811C. Bergh, P. Schermerhorn, Jr.Spinning and winding rope yarn
  4,099XApr. 29, 1825C. BerghDry docks for repairing vessels
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