| All Patents in class 73/551 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 150,266 | Apr. 28, 1874 | E.A. Sutcliffe | Governors for Engines | steam engine governors |
| 182,816 | Oct. 03, 1876 | R.W. Gardner | Governors for Steam Engines | steam engine governors |
| 287,822 | Nov. 06, 1883 | R.W. Gardner | Governor | steam engine governors |
| 453,071 | May 26, 1891 | I.F. Allman | Gas Engine | gas and gasoline engines |
| 659,944 | Oct. 16, 1900 | H.D. Weed | Gas Engine | gas and gasoline engines |
| 2,473,998 | Jun. 21, 1949 | J.T. Janette | Split-phase motor | split phase motors |
| 2,561,560 | Jul. 24, 1951 | S.S. Brown | Centrifugal guided speed responsive device | repulsion start induction run motors |
| 2,639,135 | May 19, 1953 | H.E. Sloan | Speed-Controlled Actuacting Device | industrial machine mechanisms |
| 2,846,540 | Aug. 05, 1958 | F.R. Neal | Centrifugal electrical circuit interrupting device | centrifugal motor switches |
