| All Patents in class 73/522 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 150,293 | Apr. 28, 1874 | W.L. Collamore | Engine-Governors | steam engine governors |
| 542,013 | Jul. 02, 1895 | F.F. Fischer | Governor | steam engine governors |
| 695,464 | Mar. 18, 1902 | N. Lombard | Speed Regulator | steam engine governors |
| 984,439 | Feb. 14, 1911 | F.C. Olin | Governor for Gas Engines | internal combustion engine governors |
| 1,099,364 | Jun. 09, 1914 | F.W. Heisler, C.L. Heisler | Governor for Controlling the Speed of Engines and Machinery | steam engine governors |
| 2,481,020 | Sep. 06, 1949 | J.E. Justus | Engine Control Means | internal combustion engine governors |
