| All Patents in class 123/280 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
 | 399,348 | Mar. 12, 1889 | G.M. Richards | Hydrocarbon Engine |
| | 435,439 | Sep. 02, 1890 | C.V. Lüde | Petroleum or Similar Motor |
 | 532,219 | Jan. 08, 1895 | A. Spiel, C. Spiel | Hydrocarbon Engine |
| | 536,090 | Mar. 19, 1895 | J. Kosakoff, V. List | Petroleum or Oil Engine |
| | 563,670 | Jul. 07, 1896 | F.S. Mead | Gas, Oil or Vapor Engine |
 | 583,627 | Jun. 01, 1897 | L.H. Nash | Gas Engine |
| | 1,159,341 | Nov. 02, 1915 | C.B. Jahnke, F.G. Hobart | Oil Engine |
| | 1,337,771 | Apr. 20, 1920 | F.G. Hobart, C.B. Jahnke | Oil Engine |
| | 1,388,969 | Aug. 30, 1921 | A. Peter | Protected Firing Mechanism for Internal Combustion Engines |
| | 1,659,656 | Feb. 21, 1928 | C.B. Jahnke | Oil Engine Control |
