| All Patents in class 73/546 |
Patents 1 -
10
of 20
      |
| Picture | Number | Date | Patentee | Title |
 | 36,621 | Oct. 07, 1862 | T.R. Pickering | Improved centrifugal governor |
 | 50,624 | Oct. 24, 1865 | T.R. Pickering | Governor |
 | 92,051 | Jun. 29, 1869 | W.H. Howland | Improvement in steam-engine governors |
 | 287,822 | Nov. 06, 1883 | R.W. Gardner | Governor |
 | 300,705 | Jun. 17, 1884 | J.W. Gardner, R.W. Gardner | Governor |
| | 314,528 | Mar. 24, 1885 | A.E. Hardy | Governor for Steam Engines |
 | 336,837 | Feb. 23, 1886 | N.F. Burnham | Steam Engine |
| | 417,515 | Dec. 17, 1889 | J.A. Seymour | Governor for Steam Engines |
| | 532,865 | Jan. 22, 1895 | A.W. Brown | Vapor Engine |
| | 681,144 | Aug. 20, 1901 | F.W. Spacke | Speed Varying Pulley |
