| All Patents in class 91/260 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 6,162 | Mar. 10, 1849 | G.H. Corliss | Cut-Off and Working the Valves of Steam Engines |
| | 7,838 | Dec. 17, 1850 | S.H. Gilman | Expansion-Gear for Horizontal Engines |
| | 177,059 | May 09, 1876 | G.H. Corliss | Valve Gear for Steam Engines |
| | 262,944 | Aug. 22, 1882 | H.F. Gaskill | Cut-Off Valve Gear |
 | 389,146 | Sep. 04, 1888 | N.T. Greene | Valve-gear for steam-engines |
 | 422,769 | Mar. 04, 1890 | N.T. Greene | Liberating valve-gear for engines |
 | 425,219 | Apr. 08, 1890 | N.T. Greene | Exhaust-valve-gear for engines |
| | 513,929 | Jan. 30, 1894 | F.G. Hobart | Steam Engine |
| | 790,358 | May 23, 1905 | H.F. Frisbie | Steam Engine |
