| All Patents in class 251/58 |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
| | 335,892 | Feb. 09, 1886 | J.P. Kern, J.C. Cosford | Steam Engine Governor |
 | 662,011 | Nov. 20, 1900 | M.R. Moore | Steam Engine Dash Pot |
 | 737,495 | Aug. 25, 1903 | W.O. Tourgee, R.H. Rice, J.W. Sargent | Valve-gear for steam-engines |
| | 1,457,074 | May 29, 1923 | C.R. Houghton | Constant-flow governor |
| | 1,916,433 | Jul. 04, 1933 | W.C. Muller | Speed Control Valve |
| | 2,072,425 | Mar. 02, 1937 | L.W. Eggleston | Pump System |
| | 2,183,854 | Dec. 19, 1939 | W.S. Landon | Control Device |
| | 2,193,127 | Mar. 12, 1940 | G.H. Hansen, W.C. Furnas | Switch Assembly |
| | 2,214,272 | Sep. 10, 1940 | E.J. Dillman | Fuel Supply Control Means |
| | 2,225,587 | Dec. 17, 1940 | E.J. Dillman | Control Device |
