| All Patents in class 451/142 |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| 193,715 | Jul. 31, 1877 | R. Binns, E.E. Latham | Machines for Grinding Calender Rolls | roll grinding machines |
| 251,141 | Dec. 20, 1881 | F.M. Simmons | Machine for grinding pulleys | grinders |
| 289,556 | Dec. 04, 1883 | E. Rein | Device for Grinding and Grooving Mill Rollers | metalworking machines |
| 492,095 | Feb. 21, 1893 | P. Medart | Machine for grinding pulley-shafts and their couplings | grinders |
| 785,258 | Mar. 21, 1905 | A.B. Landis | Grinding-machine | grinders |
| 861,738 | Jul. 30, 1907 | A.B. Landis | Grinding-machine | grinders |
| 1,096,188 | May 12, 1914 | C.H. Norton | Apparatus for grinding rolls | grinders |
| 1,419,073 | Jun. 06, 1922 | C.H. Norton | Machine for forming rolls | cylindrical grinders |
| 1,733,089 | Oct. 22, 1929 | L.R. Heim | Grinding | grinding machines |
| 1,788,046 | Jan. 06, 1931 | C. Booth, G.W. Binns | Roll-End Grinder | grinding machines |
| 1,835,733 | Dec. 08, 1931 | H.M. Allison, E.A. Walker | Backing Off Mechanism for Grinding Machines | grinding attachments |
| 1,972,623 | Sep. 04, 1934 | R.E. Harrison | Grinding Machine | grinding machines |
| 1,999,778 | Apr. 30, 1935 | F.S. Haas, W. Peaslee | Grinding Machinery | grinding machines |
| 2,000,608 | May 07, 1935 | L.F. Nenninger, W. Peaslee | Grinding Machinery | grinding machines |
| 2,002,921 | May 28, 1935 | L.F. Nenninger | Grinding Machinery | grinding machines |
