| All Patents in class 451/370 |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| 19,641 | Mar. 16, 1858 | L. Jennigs | Holder for Planing Knives while Grinding | tool grinders |
| 54,036 | Apr. 17, 1866 | N.F. Stone | Improved Cutter Grinder | tool making machines |
| 79,213 | Jun. 23, 1868 | H. Disston | Improvement in Device for Holding Rotary Cutters while being Ground | tool making machines |
| 103,739 | May 31, 1870 | O. Hanks | Improvement in Tool-Holders | tool holders |
| 193,748 | Jul. 31, 1877 | C.P. Brown | Improvement in Devices for Applying Edge-Tools to Sharpeners | sharpening machines |
| 201,449 | Mar. 19, 1878 | A.K. Rider | Drill Grinder | drill grinders |
| 348,497 | Aug. 31, 1886 | G.A. Long | Tool-holder for grinding | woodworking machine sharpening mechanisms |
| 470,196 | Mar. 08, 1892 | J.H. Stein, C.J. Jacobson | Tool-holder for grinding tools | sharpening jigs and fixtures |
| 824,275 | Jun. 26, 1906 | B. Bannister | Tool Holder | grinding fixtures |
| 1,047,126 | Dec. 10, 1912 | J.M. Hance | Tool-sharpening holder | |
| 1,132,663 | Mar. 23, 1915 | C.J. Luther | Honing Implement for Chisels, &c. | tool grinders |
| 1,221,556 | Apr. 03, 1917 | L.P. McEachron | Tool Holder | sharpening tool holders |
| 1,402,001 | Jan. 03, 1922 | W.H. Mensching | Tool Holder | tool holders |
| 1,455,405 | May 15, 1923 | J.F. Nagle | Fixture for Grinding Beveled Chisels | grinding fixtures |
| 1,490,063 | Apr. 08, 1924 | W.S. Tower | Machinist's Clamp | vises |
