| All Patents in class 251/233 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 312,906 | Feb. 24, 1885 | E. Schrabetz | Gas Governor for Gas Engines | gas and gasoline engines |
| 673,859 | May 14, 1901 | H.C. Clay | Reversing Valve Gear | reversing gear |
| 682,550 | Sep. 10, 1901 | E.K. Hill, L. Kaczander | Oiler | industrial machine lubrication |
| 1,109,807 | Sep. 08, 1914 | L. Skinner, E.F. Williams | Valve Gear for Steam Engines | steam engine valve gear |
| 2,505,975 | May 02, 1950 | M.E. Landon, Administratrix, W.S. Landon, deceased (Estate of) | Reciprocating Travel Controlling Means | valves |
