| All Patents in class 123/82 |
Patents 1 -
10
of 31
      |
| Picture | Number | Date | Patentee | Title |
 | 194,047 | Aug. 14, 1877 | N.A. Otto | Gas-Motor engines |
| | 196,473 | Oct. 23, 1877 | W.J. Crossley, F.W. Crossley, N.A. Otto | Gas Motor Engine |
| | 333,838 | Jan. 05, 1886 | L.P. Malandin, E. Delamare-Deboutteville | Gas Engine |
| | 350,769 | Oct. 12, 1886 | G. Smyers, G. Rogot | Petroleum and Gas Motor |
| | 357,193 | Feb. 08, 1887 | L. Martareche, W. Gavillet | Gas Motor |
 | 370,322 | Sep. 20, 1887 | F.W. Crossley | Gas Engine |
| | 433,807 | Aug. 05, 1890 | N.A. Otto | Motor Engine Worked by Oil Vapor |
| | 442,248 | Dec. 09, 1890 | F. Dürr | Gas and Petroleum Engine |
| | 453,446 | Jun. 02, 1891 | O. Lindner | Hydrocarbon Engine |
| | 511,593 | Dec. 26, 1893 | L. Malandin, E. Delamare-Debouteville | Gas or Carbureted Air Engine |
