| All Patents in class 91/186 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
| | 98,061 | Dec. 21, 1869 | A. Hendry | Steam and Caloric Engine |
| | 120,846 | Nov. 14, 1871 | N.B. Baldwin | Propelling Power |
 | 125,838 | Apr. 16, 1872 | A.T. Nichols | Improvement in steam-engines |
| | 128,062 | Jun. 18, 1872 | C.W. Patten | Improvment in Rotary Steam-Engines |
| | 503,975 | Aug. 29, 1893 | E.S. Matthews | Hydraulic valve-gear |
| | 584,760 | Jun. 15, 1897 | D.A. Decrow | Pumping engine |
| | 666,690 | Jan. 29, 1901 | C.K. Pickles | Engine |
 | 1,493,650 | May 13, 1924 | G.D. Sundstrand | Rubbing machine |
 | 2,253,490 | Aug. 26, 1941 | H.F. Bakewell | Internal combustion engine |
| | 2,398,268 | Apr. 09, 1946 | J.C. Wilson | Machine Tool |
