| All Patents in class 91/6.5 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 313,728 | Mar. 10, 1885 | D.D. Hardy | Steam Engine | steam engines |
| 440,145 | Nov. 11, 1890 | J.M. Farmer | Rotary Engine | rotary steam engines |
| 1,566,095 | Dec. 15, 1925 | F.A. Jimerson | Fluid-actuated rotary machine | pneumatic tools |
| 1,566,096 | Dec. 15, 1925 | F.A. Jimerson | Reversible throttle handle | pneumatic tools |
| 2,896,546 | Jul. 28, 1959 | B.H. Lundgren, M.M. Hann | Porting arrangement for hydraulic pumps and motors | |
| 3,279,390 | Oct. 18, 1966 | H. Horlacher | Fluid Translating Device | hydraulic apparatus |
