| All Patents in class 451/398 |
Patents 16 -
30
of 78
      |
| Number | Date | Patentee | Title | Type |
| 643,172 | Feb. 13, 1900 | O. Albrecht, A. Tindel | Crank Pin or Eccentric Turning Lathe | crank pin lathes |
| 644,929 | Mar. 06, 1900 | A.B. Landis | Foot-stock for grinding-machines | grinders |
| 667,321 | Feb. 05, 1901 | M.L. Keyes | Edge Tool Grinder | sharpening machines |
| 671,568 | Apr. 09, 1901 | G. Sittmann | Screw-machine | screw machines |
| 681,440 | Aug. 27, 1901 | A.R. Clizbe | Grinding Machine | sharpeners |
| 728,458 | May 19, 1903 | B.M. Hanson | Fluid Pressure Operated Chuck | metal lathe chucks |
| 728,572 | May 19, 1903 | B.M. Hanson | Fluid Pressure Operated Chuck | metal lathe chucks |
| 855,320 | May 28, 1907 | A.B. Landis | Eccentric work-holder for grinding-machines | grinders |
| 900,761 | Oct. 13, 1908 | D.R. McKim | Lathe Dog | lathe dogs |
| 901,503 | Oct. 20, 1908 | C.H. Waymoth | Wood-turning lathe | wood lathes |
| 911,210 | Feb. 02, 1909 | C.M. Conradson | Grinding Machine | glass grinding machines |
| 945,467 | Jan. 04, 1910 | A.B. Landis | Machine for grinding ball-bearing races | grinders |
| 955,498 | Apr. 19, 1910 | J.M. Campbell | Gear Cutting Attachment for Lathes | metal lathe accessories and attachments |
| 1,036,994 | Aug. 27, 1912 | E.J. McClellan, G.K. Garvin | Chuck for Holding Gears | metal lathe chucks |
| 1,065,077 | Jun. 17, 1913 | W. Person | Drawer-knob-polishing machine | sanding machines |
