| All Patents in class 123/434 |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
| | 300,661 | Jun. 17, 1884 | H.C. Swan, N.H. Thompson | Gas Motor Engine |
| | 306,924 | Oct. 21, 1884 | I.N. Hopkins | Gas Engine |
 | 417,924 | Dec. 24, 1889 | E. Korting | Method of Automatic Ignition in Gas Engines |
| | 460,070 | Sep. 22, 1891 | J.T. Hobbs, D.D. Hobbs | Rotary Gas Engine |
| | 509,830 | Nov. 28, 1893 | W. Seck | Hydrocarbon Motor |
| | 537,370 | Apr. 09, 1895 | C.V. Walls | Gas Engine |
| | 539,710 | May 21, 1895 | C. Sintz | Gas Engine |
| | 598,832 | Feb. 08, 1898 | A. Winton | Explosive Engine |
| | 599,235 | Feb. 15, 1898 | P.L. Hider | Explosive Engine |
| | 599,375 | Feb. 22, 1898 | W.E. White | Gas Engine |
