| All Patents in class 137/57 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 334,038 | Jan. 12, 1886 | L.H. Nash | Governor for Gas Engines | internal combustion engine governors |
| 444,699 | Jan. 13, 1891 | N.T. Greene | Safety valve-gear for steam-engines | steam engine valve gear |
| 466,488 | Jan. 05, 1892 | L.H. Wattles, G.F. Corliss | Governor for Steam Engines | steam engine governors |
| 655,135 | Jul. 31, 1900 | S.F. Butler, G.W. Turner | Automatic Stop for Engines | steam engine governors |
| 698,405 | Apr. 22, 1902 | J.W. Lambert | Speed Regulator for Explosive Engines | ignition systems |
