| All Patents in class 91/183 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 9,078 | Jun. 29, 1852 | P.M. Hutton, H.R. Remsen | Locomotive-Engine | railroad locomotives |
| 28,242 | May 08, 1860 | J. Randall | Reciprocating Steam Engine | steam engines |
| 90,128 | May 18, 1869 | P. Shaw | Hot Air Engine | hot air engines |
| 434,497 | Aug. 19, 1890 | J. Baird | Steam Engine | steam engines |
| 778,315 | Dec. 27, 1904 | T.D. Ulrich, E. Huber | Superheater for Traction Engines | traction engine superheaters |
| 2,951,342 | Sep. 06, 1960 | D.E. Lundeen, H.E. Boyer, N.V. Gusching, W.H. Ulman | Electro-hydraulic servo system | |
