| All Patents in class 92 |
Patents 16 -
30
of 428
      |
| Number | Date | Patentee | Title | Type |
| 26,871 | Jan. 17, 1860 | E.G. Allen | Steam-gage | steam pressure gauges |
| 29,646 | Aug. 14, 1860 | A.J. Allen | Steam Pressure Gage | steam pressure gauges |
| 30,138 | Sep. 25, 1860 | G. Frost | Cut-off valve for steam-engines | steam check valves |
| 31,303 | Feb. 05, 1861 | T.S. Davis | Steam Engine Valve | steam engine pistons |
| 33,299 | Sep. 17, 1861 | B. Douglas | Pump stand | household hand pumps |
| 38,187 | Apr. 14, 1863 | J. Tangye | Improvement in hydraulic lifting-jacks | hydraulic jacks |
| 38,606 | May 19, 1863 | C.E. Rymes | Improvement in hydraulic presses | hydraulic presses |
| 42,336 | Apr. 19, 1864 | E.D. Ashe | Propeller Engine | rotary steam engines |
| 43,362 | Jun. 28, 1864 | W. Wright | Oscillating Steam Engine | oscillating steam engines |
| 43,912 | Aug. 23, 1864 | M. Hittinger | Improvement in hydraulic presses | hydraulic presses |
| 66,972 | Jul. 23, 1867 | J.L. Lay | Compound Steam Engine | steam engines |
| 67,659 | Aug. 13, 1867 | N.A. Otto, E. Langen | Gas Engine | gas and gasoline engines |
| 76,268 | Mar. 31, 1868 | W. Swayne | Piston | hot air engines |
| 78,911 | Jun. 16, 1868 | J.U. Adams | Piston Packing | steam engine packing |
| 82,437 | Sep. 22, 1868 | F.S. Pease | Compound Steam Engine | compound steam engines |
