| All Patents in class 76/89.2 |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
| | 147,536 | Feb. 17, 1874 | B.D. Whitney | Improvement in sharpening-machines |
| | 383,882 | Jun. 05, 1888 | W.J. Hogan | Turning Lathe |
| | 441,758 | Dec. 02, 1890 | E. Gowdy | Burnisher for Plane Cutters |
| | 806,244 | Dec. 05, 1905 | J.I. Depew | Disk-Sharpener |
 | 833,969 | Oct. 23, 1906 | H.C. Lower | Work-holder for power-hammers |
| | 929,690 | Aug. 03, 1909 | A.L. Myers | Edge Turning Tool for Scraper Blades |
| | 956,350 | Apr. 26, 1910 | J.E. Hillstrom | Scraper-sharpener |
| | 968,180 | Aug. 23, 1910 | J. Miotke | Sharpening and Setting Device for Scraper Blades |
| | 979,831 | Dec. 27, 1910 | J.I. Depew | Disk-Sharpener |
| | 1,096,009 | May 12, 1914 | W.H. Ayres | Process of Dressing Up Cutting-Tools |
