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Patents Granted on 1850-04-09
Patents 1 - 4 of 4
First set of recordsLast set of records
7,257Apr. 09, 1850D.H. ChamberlainDivider or Compassdividers
7,262Apr. 09, 1850J. JohnsonWoodworker's Leg Viseleg vises
7,263Apr. 09, 1850W.G. Ladd, Jr.Fluid Levelinclinometers
7,264Apr. 09, 1850S. LewisMachine for cutting screws on the rails of bedsteadswood threading machines
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