| All Patents in class 451/425 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 74,206 | Feb. 11, 1868 | H. Disston | Improvement in Machine for Grinding the Rolls of Rolling Mills | grinding machines |
| 573,528 | Dec. 22, 1896 | R.G. Pilkington | Apparatus for Dressing or Polishing Rolls | polishing machines |
| 659,092 | Oct. 02, 1900 | F.A. Nystrom | Grinding-machine | machine making |
| 1,285,476 | Nov. 19, 1918 | J. Zimmerman, W.A. Underwood | Calender Roll Grinder | |
| 2,627,708 | Feb. 10, 1953 | C.C. Walker, Sr., M.H. Mater | Method of truing the peripheral surfaces of band saw wheels | bandsaw accessories |
