| Patents for Rufus Dutton |
Patents 1 -
12
of 12
      |
| 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 |
| 457,079 | Aug. 04, 1891 | R. Dutton | Machine for grinding mower-knives | sharpeners |
| 481,275 | Aug. 23, 1892 | R. Dutton | Machine for grinding mower-knives | sharpeners |
| 503,127 | Aug. 15, 1893 | R. Dutton | Machine for grinding mower-knives | sharpeners |
| 521,646 | Jun. 19, 1894 | R. Dutton | Grinding-machine | sharpening machines |
| 528,772 | Nov. 06, 1894 | R. Dutton | Whetstone | whetstones |
| 622,212 | Apr. 04, 1899 | R. Dutton | Twist-drill grinder | drill grinders |
