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All Patents in class 451/555
Patents 1 - 7 of 7
First set of recordsLast set of records
41,646Feb. 16, 1864D. SlateImproved apparatus for grinding cutter-bits for rifling-machines
609,046Aug. 16, 1898R.E. PoindexterKnife or scissors sharpenersharpening jigs and fixtures
612,912Oct. 25, 1898R.E. PoindexterKnife-sharpenersharpening jigs and fixtures
620,050Feb. 21, 1899R.E. PoindexterKnife-sharpenersharpening jigs and fixtures
1,254,671Jan. 29, 1918S.H. GallagherSharpener for Knives, Scissors and the Likecutler
1,269,272Jun. 11, 1918A.B. FlobackDevice for Sharpening Knives, Scissors, and Like Cutting Implementsscissor sharpeners
1,273,624Jul. 23, 1918W. KroliusSkate Sharpener
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