| All Patents in class 92/68 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 129,635 | Jul. 16, 1872 | W.I. Weed | Improvment in Rotary Engines | rotary steam engines |
| 260,598 | Jul. 04, 1882 | J.A. Miller | Traction Engine | steam traction engines |
| 540,490 | Jun. 04, 1895 | A.R. Holmes | Gas Engine | internal combustion engines |
| 603,914 | May 10, 1898 | F.S. Mead | Gas or Oil Engine | oil engines |
| 1,037,297 | Sep. 03, 1912 | W.H. Newbrough | Multiple Cylinder Pump | sprayers |
| 1,172,901 | Feb. 22, 1916 | C.H. Peck | Fluid-operated drills | pneumatic tools |
| 2,253,490 | Aug. 26, 1941 | H.F. Bakewell | Internal combustion engine | gas and gasoline engines |
