| All Patents in class 123/41E |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
| | 317,892 | May 12, 1885 | D.S. Troy | Gas Engine |
| | 541,773 | Jun. 25, 1895 | F.S. Mead | Gas Engine |
| | 607,904 | Jul. 26, 1898 | W.J. Wright | Gas Engine |
 | 627,220 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine |
| | 631,003 | Aug. 15, 1899 | C.P. Blake | Gas Engine |
| | 652,104 | Jun. 19, 1900 | E.S. Haines | Combustion-Engine Starting and Reversing Device |
| | 681,162 | Aug. 20, 1901 | A.C. Wolfe | Gas or Other Explosive Engine |
| | 858,844 | Jul. 02, 1907 | F.V. Hart, E.E. Winkley | Hydrocarbon Motor |
| | 1,128,208 | Feb. 09, 1915 | F.V. Hart, E.E. Winkley | Hydrocarbon Motor |
