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Patents Granted on 1820-03-06
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
3,178XMar. 06, 1820A. BrewsterImprovement in ship building
3,179XMar. 06, 1820E. GriffithsImprovement in fire places
3,180XMar. 06, 1820T. MusseyHollow or Guttered Grid Ironsfireplace tools
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