| All Patents in class 73/537 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 20,894 | Jul. 13, 1858 | C.T. Porter | Governor for steam-engines | steam engine governors |
| RE740 | Jun. 21, 1859 | C.T. Porter | Improvement in governors for steam-engines | steam engine governors |
| 125,084 | Mar. 26, 1872 | N.G. Herreshoff, E. Reynolds | Improvement in Governors for Steam Engines | steam engine governors |
| 174,254 | Feb. 29, 1876 | B.W. Johnson | Governor | steam engine governors |
| 314,353 | Mar. 24, 1885 | J.W. Thompson | Steam Engine Governor | steam engine governors |
| 402,892 | May 07, 1889 | W. Berwick | Governor for Steam Engines | steam engine governors |
| 451,047 | Apr. 28, 1891 | H.J. Hartig | Governor for Engines | internal combustion engine governors |
| 494,746 | Apr. 04, 1893 | F. Phillips | Governor for steam-engines | steam engine governors |
| 504,953 | Sep. 12, 1893 | R.H. Thurston | Engine-governor | steam engine governors |
| 582,232 | May 11, 1897 | F.M. Rites | Pressure Engine | external combustion engines |
| 1,043,825 | Nov. 12, 1912 | W.A. Griswold | Speed and Distance Indicating and Recording Device | speed and distance indicators |
| 1,919,449 | Jul. 25, 1933 | G. Oetzel | Governor | internal combustion engine governors |
