| All Patents in class 123/73C |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 574,535 | Jan. 05, 1897 | C.L. Grohmann | Gas Engine | gas and gasoline engines |
| 576,604 | Feb. 09, 1897 | L.H. Nash | Gas Engine | gas and gasoline engines |
| 580,446 | Apr. 13, 1897 | D. Best | Petroleum Engine | ignition systems |
| 583,628 | Jun. 01, 1897 | L.H. Nash | Gas or Oil Engine | gas and gasoline engines |
| 658,367 | Sep. 25, 1900 | E. Apperson, E. Haynes | Explosive Engine | gas and gasoline engines |
| 864,877 | Sep. 03, 1907 | E.J. Woolf | Explosive Engine | internal combustion engines |
| 1,632,988 | Jun. 21, 1927 | E.T. Adams | Internal Combustion Engine and Method of Operating the Same | internal combustion engines |
