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Patents Granted on 1890-12-30
Patents 1 - 14 of 14
First set of recordsLast set of records
443,500Dec. 30, 1890L.B. Curtis, R.P. CurtisPipe Threading Machinepipe threading machines
443,501Dec. 30, 1890R.P. CurtisPipe Threading Machinepipe threading machines
443,502Dec. 30, 1890R.P. CurtisPipe Threading Machinepipe threading machines
443,553Dec. 30, 1890S. TaylorSaw Handle (pivoting with device to hold in place)
443,569Dec. 30, 1890C.H. CooleyGrain-weigher
443,694Dec. 30, 1890W.J. WoodcockFriction Clutch
443,718Dec. 30, 1890F.H. RichardsGrain-weigher
443,775Dec. 30, 1890C.L. LibbyAttachment for Turret Lathesmetal lathe accessories
443,795Dec. 30, 1890W.R. RootSandpapering-machinetool making machines
443,862Dec. 30, 1890J.H. MitchellContinuous dough-sheeting machinebaker
443,869Dec. 30, 1890J.W. RiglanderMicrometer Gagemicrometers
443,874Dec. 30, 1890E. SnyderDrawing-Knifedraw knives
443,895Dec. 30, 1890G.E. BurtShaft-couplingindustrial machine shaft couplings
443,933Dec. 30, 1890C.H. Cooley, F.H. RichardsGrain-weigher
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