| All Patents in class 60/668 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| FX-7,372 | Jan. 17, 1833 | S.H. Long | Steam engine valve | steam engines |
| 126,842 | May 14, 1872 | J.H. Smith | Improvement in traction-engines | steam traction engines |
| 136,886 | Mar. 18, 1873 | A.A. Wilder | Improvement in dummy or traction engines | |
| 187,917 | Feb. 27, 1877 | J.S. Scofield | Vertical Portable Engine | portable steam engines |
| 188,866 | Mar. 27, 1877 | N.M. Davison | Portable and Traction Engine | steam traction engines |
| 224,427 | Feb. 10, 1880 | L.W. Hasselman | Portable Engine | portable steam engines |
| 234,824 | Nov. 23, 1880 | A.H. Wagner | Steam Engine for Traction Vehicles | steam traction engines |
| 283,398 | Aug. 21, 1883 | D.M. Kirkpatrick, J.F. Jackson | Gas Engine | gas and gasoline engines |
| 367,784 | Aug. 09, 1887 | J.S. Brown | Attachment for Engines | steam engines |
| 443,481 | Dec. 23, 1890 | E. Howland | Portable Steam Engine | portable steam engines |
| 477,279 | Jun. 21, 1892 | G.S. Strong | Compound engine | steam engines |
| 778,315 | Dec. 27, 1904 | T.D. Ulrich, E. Huber | Superheater for Traction Engines | traction engine superheaters |
