| All Patents in class 123/522 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
| | 195,585 | Sep. 25, 1877 | F. Dieckmann | Gas-Engines |
 | 334,041 | Jan. 12, 1886 | L.H. Nash | Method of Operating Explosive Vapor Engines |
| | 376,212 | Jan. 10, 1888 | H.K. Shanck | Gas Engine |
| | RE10,951 | Jul. 31, 1888 | L.P. Malandin, E. Delamare-Deboutteville | Gas Engine |
| | 448,924 | Mar. 24, 1891 | O. Kosztovits | Gas Engine |
| | 450,091 | Apr. 07, 1891 | L.G. Woolley | Vaporizer for Gas Engines |
 | 474,838 | May 17, 1892 | J.W. Lambert | Carburetor |
| | 532,412 | Jan. 08, 1895 | P. Bilbault | Gas or Petroleum Engine |
| | 597,921 | Jan. 25, 1898 | E.D. Strong | Explosive Engine |
| | 642,562 | Jan. 30, 1900 | H.F. Probert | Vaporizer for Gas Engines |
