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Patents Granted on 1872-__-__
Patents 1 - 15 of 738
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CA-1,277Jan. 01, 1872A. KayImprovement in steam engines
CA-1,281Jan. 01, 1872J.W. MurrayImprovement in the governor valve of steam engines
122,308Jan. 02, 1872W.H. DowningImprovement in Pipe Tongspipe tongs
122,313Jan. 02, 1872P. Etches, J.D. WilsonImprovement in circular-saw millscircular sawmills
122,320Jan. 02, 1872J. HutherImprovement in saws
122,321Jan. 02, 1872N. JenkinsImprovement in wood-molding machinesmolders
122,323Jan. 02, 1872J. KritchImprovement in Hubs for Carriage Wheelswheelwright
122,339Jan. 02, 1872C.E. TorrenceImprovements in Bench-Planesbench planes
122,344Jan. 02, 1872G.W. WilliamsExcavatorexcavators
122,390Jan. 02, 1872C.B. Knapp, N.S. ClementImprovement in machines for dovetailingdovetailing machines
122,402Jan. 02, 1872Z.C. PhillipsImprovement in boring-machinesdrilling and boring
122,420Jan. 02, 1872G. Westinghouse, Sr.Improvement in thrashing-machinesthreshers
122,426Jan. 02, 1872M.L. AndrewImprovement in shaft-couplingsindustrial machine shaft couplings
122,443Jan. 02, 1872J.W. CurrierImprovement in Combined Toolcombination tools
122,488Jan. 02, 1872S. PerryImprovement in horse-power jacksanimal powered apparatus
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