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Patents Granted on 1838-04-??
Patents 1 - 15 of 18
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NumberDatePatenteeTitleType
664Apr. 02, 1838R. SavaryMachine for Making Wrought Spikes and Nailsspecialty woodworking machines
667Apr. 02, 1838O. Wright, A.A. WrightRotary steam-enginerotary steam engines
AI3Apr. 04, 1838J. Heberling, W.E. Lukens, H. Heberling, A. TrahernHorse Poweranimal powered apparatus
681Apr. 07, 1838R. DanielsCrosscut eclipse shearing-machine for shearing woolen clothscloth shearing machines
684Apr. 07, 1838T. Burdick, F. BurdickMachine for mortising timber, &c.mortising machines
685Apr. 07, 1838I. McLaughlinMachine for mortising timber, &c.mortising machines
NS-6Apr. 09, 1838D.H. DickeyInstrument for drawing teethdental tools
694Apr. 14, 1838C. Learned, S. WatermanBrick Machinebrick and tile making machines
RE2Apr. 16, 1838W. KeaneImprovement in Machines for Cutting Wood and Other Screwsscrew machines
695Apr. 16, 1838J.R. WheelerWater Wheelwater wheels
699Apr. 21, 1838D.C. StoneMachine for manufacturing axestool making machines
700Apr. 21, 1838J.C. YatesSawmill without saw-gatereciprocating sawmills
714Apr. 28, 1838J. SecorHorse Poweranimal powered apparatus
715Apr. 28, 1838J. MummaWater Wheelwater wheels
716Apr. 28, 1838H. BarnesMachine for mortising and tenoning timber, &c.mortising machines
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