| Patents for Mower Knife Grinder Co. |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 342,290 | May 18, 1886 | R. Dutton | Machine for Grinding Mowing Machine Knives | sharpeners |
| CA-24,338 | Jun. 17, 1886 | R. Dutton | Machine for grinding mower-knives | sharpeners |
| 359,964 | Mar. 22, 1887 | R. Dutton | Machine for grinding mower-knives | sharpeners |
| CA-26,397 | Apr. 05, 1887 | R. Dutton | Machine for grinding mower-knives | sharpeners |
| 395,615 | Jan. 01, 1889 | R. Dutton | Machine for grinding mower-knives | sharpeners |
| CA-32,970 | Dec. 02, 1889 | R. Dutton | Machine for grinding mower-knives | sharpeners |
