| All Patents in class 91/180 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 409,457 | Aug. 20, 1889 | F.A. Shoemaker, J.W. Dennis | Steam-engine | steam engines |
| 424,183 | Mar. 25, 1890 | F.A. Shoemaker, J.W. Dennis | Reversing-valve for steam-engines | steam engine valves |
| 430,311 | Jun. 17, 1890 | J.W. Eisenhuth | Cut-Off for Compound Engines | steam engines |
| 630,767 | Aug. 08, 1899 | C.H. Beadle | Rotary Distributing Valve | steam engine valves |
| 714,977 | Dec. 02, 1902 | C. Vogel | Steam Engine | steam engine valves |
| 757,970 | Apr. 19, 1904 | W.T. Sears | Pneumatic tool | pneumatic |
| 866,922 | Sep. 24, 1907 | W.O. Duntley | Engine | pneumatic tools |
| 1,255,315 | Feb. 05, 1918 | F.A. Jimerson | Ratchet operating mechanism for drills | pneumatic motors |
| 1,544,644 | Jul. 07, 1925 | F.A. Jimerson | Fluid-actuated rotary tool | pneumatic tools |
| 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 |
| 1,781,416 | Nov. 11, 1930 | G.D. Sundstrand | Pump | |
| 2,010,377 | Aug. 06, 1935 | B. Sassen | Hydraulic Power Unit | hydraulic apparatus |
| 3,596,569 | Aug. 03, 1971 | J.D. Wisbey | Valve for a Closed-Loop Hydraulic Torque Amplifier | hydraulic apparatus |
