| All Patents in class 290/40R |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 319,260 | Jun. 02, 1885 | A.L. Ide | Governor for Steam and Fluid Engines | steam engine governors |
| 574,320 | Dec. 29, 1896 | A. Giesler | Electric Water Wheel Governor | water wheel governors |
| 657,662 | Sep. 11, 1900 | F.A. La Roche | Controlling Means for Explosive-Engines | gas and gasoline engines |
| 1,451,502 | Apr. 10, 1923 | V.A. Fynn | Speed-regulating apparatus | electrical devices |
| 1,604,415 | Oct. 26, 1926 | J.J. Kane | Electric Power System | electric generators |
| 1,897,834 | Feb. 14, 1933 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,986,915 | Jan. 08, 1935 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
