| Patents for Luther Grinder Mfg. Co. |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 593,964 | Nov. 16, 1897 | C.J. Luther | Grinding Machine | sharpening machines |
| 801,542 | Oct. 10, 1905 | T.A. Panyard | Grinding and polishing machine | sharpening machines |
| 994,216 | Jun. 06, 1911 | J.M. Thompson | Grinding-machine | sharpening machines |
| 1,132,663 | Mar. 23, 1915 | C.J. Luther | Honing Implement for Chisels, &c. | tool grinders |
| 1,182,095 | May 09, 1916 | C.J. Luther | Gear-casing | sharpening machines |
| 1,404,337 | Jan. 24, 1922 | B. Bethke | Clamping support for grinding machines | bench or pedestal grinders |
