| All Patents in class 76/82 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 29,336 | Jul. 24, 1860 | J.W. Wood | Edge tool Sharpener | woodworking machine sharpening mechanisms |
| 464,577 | Dec. 08, 1891 | L. Mayer | Bush-hammer sharpener | grinders |
| 528,772 | Nov. 06, 1894 | R. Dutton | Whetstone | whetstones |
| 951,961 | Mar. 15, 1910 | J. Miotke | Filing Device for Scraper Blades | sharpening tools and fixtures |
| 956,350 | Apr. 26, 1910 | J.E. Hillstrom | Scraper-sharpener | sharpening machines |
| 961,010 | Jun. 07, 1910 | W. Caron, P.J. Poitras | Grinding Machine | |
| 1,167,371 | Jan. 11, 1916 | J. Allen | Scraper Vise & Burnisher | |
| 1,257,927 | Feb. 26, 1918 | W.M. Reagan | Scissors and Shears Sharpening Device | scissor sharpeners |
| 2,098,865 | Nov. 09, 1937 | S.T. Freas | Rotary File | |
