| All Patents in class 73/535 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 9,236 | Aug. 31, 1852 | W. Hodgson, G.S. Stearns | Governor for steam-engines | steam engine governors |
| 172,116 | Jan. 11, 1876 | A.O. Whittemore, G.W. Hall | Engine-Governor | steam engine governors |
| 310,363 | Jan. 06, 1885 | G.W. Bigelow | Steam Engine Governor | steam engine governors |
| 358,297 | Feb. 22, 1887 | A.D. Quint | Engine-governor | steam engine governors |
| 654,872 | Jul. 31, 1900 | E.F. Cassel | Hydraulic Motor | hydraulic motors |
| 971,095 | Sep. 27, 1910 | W.D. White | Stop for Water Wheels | water wheels |
| 1,099,364 | Jun. 09, 1914 | F.W. Heisler, C.L. Heisler | Governor for Controlling the Speed of Engines and Machinery | steam engine governors |
| 2,859,295 | Nov. 04, 1958 | M. Weidig | Zero Speed Mechanism | electric switches |
