| All Patents in class 123/556 |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 328,970 | Oct. 27, 1885 | J.F. Place | Gas Engine |
| | 425,909 | Apr. 15, 1890 | J. Roots | Petroleum Engine |
 | 455,388 | Jul. 07, 1891 | J. Charter | Gas Engine |
| | 547,606 | Oct. 08, 1895 | W.E. Gibson | Petroleum or Hydrocarbon Engine |
| | 548,772 | Oct. 29, 1895 | J.R. Bridges | Explosive Gas Engine |
| | 550,785 | Dec. 03, 1895 | J.E. Friend | Hydrocarbon Motor |
| | 557,493 | Mar. 31, 1896 | W.L. Corson, J.F. Daly | Gas Engine |
| | 569,530 | Oct. 13, 1896 | H.A. Winter | Gas Engine |
| | 588,466 | Aug. 17, 1897 | A.G. Pace | Combustion Engine |
| | 614,114 | Nov. 15, 1898 | C.A. Lefebvre | Oil or Similar Motor |
