| All Patents in class 451/254 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 26,810 | Jan. 10, 1860 | T. Blume | Machine for Facing Pulleys | polishing and buffing machinery |
| 36,548 | Sep. 23, 1862 | P. Pryibil | Improved machine for cutting crystals | |
| 90,620 | May 25, 1869 | C.V. Woerd | Lathe for Grinding and Polishing Pivots of Watch work | watchmakers lathes |
| 411,729 | Sep. 24, 1889 | W.J. Perkins | Saw-grinding machine | saw sharpening machines |
| 422,323 | Feb. 25, 1890 | J.W. Strouse | Apparatus for truing the periphery of circular saws | tool making machines |
| 463,995 | Nov. 24, 1891 | F. Rattek | Locomotive Engine Wheel Lathe | engine wheel lathes |
| 806,244 | Dec. 05, 1905 | J.I. Depew | Disk-Sharpener | sharpeners |
| 1,223,155 | Apr. 17, 1917 | A.M. Drake | Table driving and feeding mechanism for grinding machines | grinders |
| 1,260,361 | Mar. 26, 1918 | P.E. Gaire | Grinding Machine | grinding machines |
| 1,262,540 | Apr. 09, 1918 | J. Miller | Grinding Machine | grinding machines |
| 1,268,974 | Jun. 11, 1918 | W.C. Hoppes | Disc Sharpener | sharpeners |
| 1,339,791 | May 11, 1920 | F.D. Hatfield, A.C. Savidge | Valve Lathe | metal lathes |
| 1,445,875 | Feb. 20, 1923 | R.W. Ellingham, C.E. Van Norman | Grinding machine | vehicle mechanic |
| 3,434,244 | Mar. 25, 1969 | J. Decker | Grinding Machinery for Finishing Brake Discs | surface grinders |
