| All Patents in class 192/104R |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 153,245 | Jul. 21, 1874 | G.W. Daimler | Gas Motor Engines | gas and gasoline engines |
| 345,670 | Jul. 20, 1886 | A. Campbell | Speed Regulator | industrial machine speed and direction changing mechanisms |
| 390,216 | Oct. 02, 1888 | G.F. Evans | Speed Regulating Device | industrial machine pulleys and belt drive mechanisms |
| 453,033 | May 26, 1891 | J.G. Blount | Speed-controlling device | industrial machine mechanisms |
| 580,387 | Apr. 13, 1897 | J.F. Steward, G.H. Ellis | Explosive Engine | oil engines |
| 1,078,161 | Nov. 11, 1913 | F.E. Parker | Speed Governing Pulley | industrial machine pulleys and belt drive mechanisms |
| 3,032,668 | May 01, 1962 | R.J. Howard, W.H. Woodward, K.A. Robinson | Control of Electric Machines | machine tool controls |
