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Patents Granted on 1850-12-??
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,806Dec. 03, 1850S. BeersMachine for turning irregular formspattern lathes
7,807Dec. 03, 1850H.J. BetjemannMachine for boring dovetailed mortisesmortising machines
7,811Dec. 03, 1850O. MatherMachine for dressing spokeswheelwright
7,815Dec. 03, 1850A. ThayerAuger-Handleauger handles
7,827Dec. 10, 1850D.H. SouthworthPlaning-machinewood planers
7,829Dec. 10, 1850N.D. WhiteMachine for making pill-boxesbox making machines
7,832Dec. 17, 1850O. ChildMill for sawing with circular sawscircular sawmills
7,836Dec. 17, 1850J.F. FlandersMachinery for Cutting and Binding Sheet Metalsheet metal
7,838Dec. 17, 1850S.H. GilmanExpansion-Gear for Horizontal Enginessteam engine valve gear
7,852Dec. 24, 1850T.H. BurridgeMeans for Preventing BackLash in the Feed-Motion of Planing Machinesmetal planers
7,862Dec. 24, 1850J.N. WalkerMill for grindinggrist mills
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