| All Patents in class 123/531 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
| | 153,952 | Aug. 11, 1874 | L.P. Hawes | Gas Carbureting Machines |
| | 225,778 | Mar. 23, 1880 | W. Hees, W. Wittig | Gas-Engine |
 | 302,045 | Jul. 15, 1884 | J. Spiel | Gas Engine |
 | 399,348 | Mar. 12, 1889 | G.M. Richards | Hydrocarbon Engine |
| | 408,460 | Aug. 06, 1889 | E. Captaine | Atomizer for Petroleum Engines |
| | 504,723 | Sep. 12, 1893 | A. Gray | Hydrocarbon Engine |
| | 542,410 | Jul. 09, 1895 | S. Griffin | Liquid Hydrocarbon Motor |
| | 553,460 | Jan. 21, 1896 | W.W. Grant | Gas or Vapor Engine |
 | 569,564 | Oct. 13, 1896 | F.C. Olin | Gas Engine |
 | 574,535 | Jan. 05, 1897 | C.L. Grohmann | Gas Engine |
