| All Patents in class 123/255 |
Patents 1 -
10
of 34
      |
| Picture | Number | Date | Patentee | Title |
| | 325,377 | Sep. 01, 1885 | C.W. Baldwin | Gas Engine |
 | 399,348 | Mar. 12, 1889 | G.M. Richards | Hydrocarbon Engine |
| | 399,569 | Mar. 12, 1889 | M.V. Schiltz | Petroleum Engine |
| | 407,234 | Jul. 16, 1889 | N.A. Otto | Motor Engine Worked by Combustion of Spray of Petroleum |
 | 412,228 | Oct. 08, 1889 | F. Küppermann, A. Altmann | Petroleum Motor |
| | 425,116 | Apr. 08, 1890 | A.T. Griggs, J.R. Valentine | Gas Engine |
| | 448,369 | Mar. 17, 1891 | D.S. Regan | Vapor Engine |
 | 532,219 | Jan. 08, 1895 | A. Spiel, C. Spiel | Hydrocarbon Engine |
| | 535,837 | Mar. 19, 1895 | W. Lorenz | Combined Vaporizer and Igniter for Oil Motors |
| | 535,914 | Mar. 19, 1895 | J. Kosakoff, V. List | Petroleum or Oil Engine |
