| All Patents in class 123/52.3 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 341,934 | May 18, 1886 | L.H. Nash | Gas Engine |
 | 341,935 | May 18, 1886 | L.H. Nash | Method of Operating Gas Engines |
| | 581,385 | Apr. 27, 1897 | E.P. Woillard | Gas or Vapor Engine |
| | 586,409 | Jul. 13, 1897 | E.P. Woillard | Gas or Vapor Engine |
| | 642,176 | Jan. 30, 1900 | E. Thomson | Internal Combustion Engine |
 | 796,106 | Aug. 01, 1905 | J.L. Bogert | Internal-combustion heat-engine |
 | 878,925 | Feb. 11, 1908 | E.J. Woolf | Reversible Explosive Compound-Engine. |
 | 1,022,177 | Apr. 02, 1912 | B. Brazelle | Internal-combustion motor |
