| All Patents in class 451/146 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 16,223 | Dec. 16, 1856 | E. Andrews | Improved machine for grinding saws | cutter grinding |
| 16,782 | Mar. 10, 1857 | E. Andrews | Machine for grinding saws | making sawblades |
| 156,989 | Nov. 17, 1874 | H. Disston | Improvement in Saw Grinding Machines | making sawblades |
| 252,943 | Jan. 31, 1882 | A. Hessels | Machine for Grinding the Laps of Polishing Machines | grinding machines |
| 271,680 | Feb. 06, 1883 | W.P. Barclay | Car Wheel Borer and Truing Machine | wheel truing devices |
| 285,123 | Sep. 18, 1883 | J.H. Gowan | Car Wheel Boring and Truing Machine | horizontal boring mills |
| 287,340 | Oct. 23, 1883 | J.R. Thomas, H.J. Cordesman, F. Danner | Double-drum sand-papering machine | sanding machines |
| 287,762 | Oct. 30, 1883 | J.H. Gowan | Car Wheel Truing Machine | car wheel lathes |
| 409,337 | Aug. 20, 1889 | E.B. Rich | Machine for grinding knives and saws | sharpening machines |
| 429,700 | Jun. 10, 1890 | E.H. Parks | Grinding Machine | grinders |
| 544,439 | Aug. 13, 1895 | A.B. Landis | Grinding-machine | grinders |
| 810,426 | Jan. 23, 1906 | J.N. Heald, R.L. Morgan | Grinding-machine | surface grinders |
| 1,718,554 | Jun. 25, 1929 | J. Greensmith | Hydraulic Grinder | surface grinders |
| 1,947,234 | Feb. 13, 1934 | G.D. Sundstrand | Machine for truing brake drums | brake maintenance |
| 3,075,413 | Jan. 29, 1963 | E.A. Allen, F.P. Healy | Automotive Brake Drum Lathe | brake drum lathes |
