| All Patents in class 451/182 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| 256,440 | Apr. 11, 1882 | P. Medart | Machine for grinding pulleys | cylindrical grinders |
| 543,475 | Jul. 30, 1895 | H. Fraser | Planer | wood planers |
| 876,428 | Jan. 14, 1908 | J.G. Blessing | Fluid Pressure Operated Grinding Machine | sharpening machines |
| 1,106,803 | Aug. 11, 1914 | R.H. Grant | Grinding-machine | cylindrical grinders |
| 1,249,632 | Dec. 11, 1917 | H.R. Isler | Grinding-machine | surface grinders |
| 1,277,472 | Sep. 03, 1918 | W.B. Peirce | Grinding Machine | |
| RE15,035 | Jan. 25, 1921 | L.R. Heim | Roll-grinding machine | centerless grinders |
| 1,575,520 | Mar. 02, 1926 | W.D. Archea | Work Carrying Device for Grinding Machines | centerless grinders |
| 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 | centerless grinders |
| 1,611,136 | Dec. 14, 1926 | F.C. Sanford | Centerless Grinding Machine for Tapering Drills and the Like | centerless grinders |
| 1,633,563 | Jun. 28, 1927 | C.M. Abbott | Shingle-abrading machine | shingle machines |
| 1,665,084 | Apr. 03, 1928 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,705,230 | Mar. 12, 1929 | G.W. Binns | Grinding Machinery | grinding machines |
| 1,733,087 | Oct. 22, 1929 | L.R. Heim | Grinding Apparatus | grinding machines |
