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Patents Granted on 1850-04-??
Patents 1 - 15 of 16
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NumberDatePatenteeTitleType
XC-291Apr. 02, 1850W.R. SeaverSeaver's improved stave dressercooper
XC-292Apr. 02, 1850W.R. SeaverSeaver's improved stave joinercooper
7,229Apr. 02, 1850H. AikenClamp
7,234Apr. 02, 1850W. DavisSawmillreciprocating sawmills
7,242Apr. 02, 1850D. HicksAttachment of the Forge-Hammer to its Helvetrip and helve hammers
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
7,278Apr. 09, 1850M. WilderMill Shaft Spindleindustrial machine shaft couplings
7,311Apr. 23, 1850H.G. ThompsonLathe for making pistons for rotary steam-enginesmetal lathes
7,322Apr. 30, 1850H. ElliottGearing for Regulating Speedindustrial machine speed and direction changing mechanisms
7,325Apr. 30, 1850S.E. Parsons, E.H. ParsonsHanging saws in sawmillssawmills
7,326Apr. 30, 1850S. PeckDaguerreotype-Plate Holder
7,329Apr. 30, 1850E. Brecht, W.H. TrisslerRoasting Coffeecoffee roasters
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