| All Patents in class 74/2 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 37,063 | Dec. 02, 1862 | J. Tremper | Improvement in variable cut-off gears for steam-engines | steam engine governors |
| 140,414 | Jul. 01, 1873 | J. Hendy | Improvement in engine-governors | steam engine governors |
| 162,101 | Apr. 13, 1875 | G.H. Reynolds | Valve Gear for Steam Engines | steam engine valve gear |
| 215,797 | May 27, 1879 | G.H. Corliss | Valve-Gear for Steam-Engines | steam engine valve gear |
| 268,523 | Dec. 05, 1882 | J. Nesbitt | Electric device for operating the throttle-valves of steam-engines | steam engine valve gear |
| 642,146 | Jan. 30, 1900 | M.R. Moore | Valve Gear | steam engine valve gear |
| 923,591 | Jun. 01, 1909 | C.G. Sprado | Gas Engine | internal combustion engine governors |
| 1,606,542 | Nov. 09, 1926 | C.H. Usher | Safety stop | industrial machine pulleys and belt drive mechanisms |
| 1,727,424 | Sep. 10, 1929 | W.D. Archea | Milling Machine | milling machines |
| 2,150,858 | Mar. 14, 1939 | G.K. Eggleston | Control Device | temperature controls |
| 2,240,763 | May 06, 1941 | E.J. Dillman | Control System | heating apparatus |
| 2,356,958 | Aug. 29, 1944 | A. Von Wangenheim | Valve | flow controls |
| 2,455,270 | Nov. 30, 1948 | J.A. Ravella | Automatic striking tool | punches |
| 2,466,583 | Apr. 05, 1949 | E.J. Dillman | Trip Mechanism | flow controls |
| 2,622,376 | Dec. 23, 1952 | A.H. Dall | Grinding Machine | grinding machines |
