| All Patents in class 91/410 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 558,749 | Apr. 21, 1896 | G.L. Thomas | Electrically Controlled Gas Engine or Motor | gas and gasoline engines |
| 955,568 | Apr. 19, 1910 | W.D. White | Water-wheel governor | water wheels |
| 1,244,664 | Oct. 30, 1917 | H.E. Warren | Fluid-operated lathe | metal lathes |
| 1,722,506 | Jul. 30, 1929 | H.G. Sahlin | Drop hammer | drop hammers |
| 1,924,545 | Aug. 29, 1933 | W.H. Fitzgerald, R.P. Fitzgerald | Drop hammer | drop hammers |
| 1,956,758 | May 01, 1934 | W. Ernst | Hydraulic Press Operating Circuits | hydraulic presses |
| 2,006,311 | Jun. 25, 1935 | B. Sassen, H. Ernst | Leakage Compensator for Hydraulic Systems | hydraulic apparatus |
| 2,599,899 | Jun. 10, 1952 | J.A. Denton | Servomotor | |
