| All Patents in class 74/834 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 252,224 | Jan. 10, 1882 | D. Joy | Steam Engine Valve Gear | steam engine valve gear |
| 335,578 | Feb. 09, 1886 | J. Grime | Valve Gear For Engines | steam valve gear |
| 389,382 | Sep. 11, 1888 | J. Grime | Valve Gear for Engines | steam engine valve gear |
| 721,994 | Mar. 03, 1903 | A.D. Baker | Valve-Gear for Engines | steam engine valve gear |
| 881,286 | Mar. 10, 1908 | A.D. Baker | Valve-Gear for Steam-Engines | steam engine valve gear |
| 1,125,367 | Jan. 19, 1915 | W.H. Miller | Valve-gear | steam engine valve gear |
