| All Patents in class 123/54.2 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 289,693 | Dec. 04, 1883 | L.H. Nash | Gas Engine |
| | 548,628 | Oct. 29, 1895 | G.F. Conner | Gas Engine |
| | 570,439 | Oct. 27, 1896 | E.J. Pennington | Gas engine for dirigible |
| | 575,326 | Jan. 19, 1897 | H.S. Bristol | Gas Engine |
| | 584,130 | Jun. 08, 1897 | F.C. Griswold | Gas Engine |
| | 605,583 | Jun. 14, 1898 | R.L. Merritt | Internal Combustion Engine |
| | 657,662 | Sep. 11, 1900 | F.A. La Roche | Controlling Means for Explosive-Engines |
| | 1,174,459 | Mar. 07, 1916 | A.E. Winckler | Explosive Engine |
 | 1,557,395 | Oct. 13, 1925 | B.F. Augustine | Rotary Gas Engine |
 | 2,232,305 | Feb. 18, 1941 | H.F. Bakewell | Internal combustion engine |
