| All Patents in class 451/182 |
Patents 1 -
10
of 20
      |
| Picture | Number | Date | Patentee | Title |
 | 256,440 | Apr. 11, 1882 | P. Medart | Machine for grinding pulleys |
| | 543,475 | Jul. 30, 1895 | H. Fraser | Planer |
| | 876,428 | Jan. 14, 1908 | J.G. Blessing | Fluid Pressure Operated Grinding Machine |
| | 1,106,803 | Aug. 11, 1914 | R.H. Grant | Grinding-machine |
 | 1,249,632 | Dec. 11, 1917 | H.R. Isler | Grinding-machine |
| | 1,277,472 | Sep. 03, 1918 | W.B. Peirce | Grinding Machine |
| | RE15,035 | Jan. 25, 1921 | L.R. Heim | Roll-grinding machine |
| | 1,575,520 | Mar. 02, 1926 | W.D. Archea | Work Carrying Device for Grinding Machines |
| | 1,607,641 | Nov. 23, 1926 | G.D. Pitkin | Abrasive saw-edging machine or the like |
| | 1,611,135 | Dec. 14, 1926 | F.C. Sanford | Grinding Machine |
