| All Patents in class 180/20 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 4,029 | May 01, 1845 | J. Semple | Steam Coach Adapted to the Prairies | traction engine wheels |
| RE855 | Nov. 22, 1859 | J.W. Fawkes | Steam Plow | steam plows |
| 26,466 | Dec. 20, 1859 | J.H. Bailey | Traction Engine | steam traction engines |
| 28,475 | May 29, 1860 | I.F. Holloway | Steam Traction Engine | steam traction engines |
| 29,358 | Jul. 31, 1860 | T.H. Burridge | Steam Plow | steam plows |
| 143,028 | Sep. 23, 1873 | L. Perkins | Traction Engines | steam traction engines |
| 367,912 | Aug. 09, 1887 | M.E. Hershey | Traction Engine | steam traction engines |
| 554,421 | Feb. 11, 1896 | C.O. Heggem | Steam Street Roller | steam rollers |
| 571,964 | Nov. 24, 1896 | J.F. Adams | Steering Mechanism | steam rollers |
| 601,440 | Mar. 29, 1898 | B. Holmes | Motor Vehicle | automobiles |
| 689,186 | Dec. 17, 1901 | C.L. Heisler | Steam Road Roller | steam rollers |
| 728,451 | May 19, 1903 | C.L. Heisler, W.M. Fawcett | Road Roller | steam rollers |
| 939,877 | Nov. 09, 1909 | D. Farquhar, M.J. Todd | Road Roller | steam rollers |
