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All Patents in class 451/132
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
41,419Feb. 02, 1864J.G. BakerImprovement in Grinding Sawstool making machines
283,685Aug. 21, 1883F. TrierLathe for Dressing Stonestoneworking lathes
313,581Mar. 10, 1885H. FairbrotherMachine for Dressing Saw Teethsaw sharpening machines
558,641Apr. 21, 1896G.A. EnsignPolishing-machinesanding machines
667,924Feb. 12, 1901H.P. Schofield, L.L. FilstrupSaw-sharpening machinesaw sharpening machines
889,468Jun. 02, 1908F.L. LaneSanding-machinesanding machines
1,123,871Jan. 05, 1915A.L. HatfieldMachine for sharpening safety-razor bladessharpening machines
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