| All Patents in class 91/398 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 533,290 | Jan. 29, 1895 | J.D. Gray | Direct-acting steam-engine | steam engines |
| 675,112 | May 28, 1901 | R.A. Rutherford | Pneumatic Hoisting Apparatus | hoists, winches, come-alongs |
| 693,939 | Feb. 25, 1902 | M.A. Yeakley | Pneumatic hammer | power hammers |
| 1,244,664 | Oct. 30, 1917 | H.E. Warren | Fluid-operated lathe | metal lathes |
| 2,164,876 | Jul. 04, 1939 | H. Horlacher | Hydraulic Vane Motor | hydraulic apparatus |
| 2,321,264 | Jun. 08, 1943 | H.H. Turner | Fluid-Pressure Operated Mechanism | oil hydraulic motors |
| 2,703,040 | Mar. 01, 1955 | H. Horlacher | Machine Tool Control Mechanism | metalworking machine mechanisms |
