| All Patents in class 123/74B |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 151,468 | Jun. 02, 1874 | G.B. Brayton | Gas Engines | gas and gasoline engines |
| 286,030 | Oct. 02, 1883 | S. Marcus | Gas Engine | gas and gasoline engines |
| 306,339 | Oct. 07, 1884 | S. Marcus | Electrical Igniting Device for Gas Engines | ignition systems |
| 434,171 | Aug. 12, 1890 | C.W. Baldwin | Gas Engine | gas and gasoline engines |
| 570,649 | Nov. 03, 1896 | R.J. Rolfson | Gas Engine | gas and gasoline engines |
| 588,061 | Aug. 10, 1897 | H.C. Hart | Gas Engine | gas and gasoline engines |
| 603,297 | May 03, 1898 | W.F. Trotter | Oil or Gas Engine | oil engines |
| 648,914 | May 08, 1900 | H.A. Bertheau | Vaporizer for Petroleum-Motors | carburetors |
| 650,789 | May 29, 1900 | J.S. Losch | Gas Engine | gas and gasoline engines |
| 655,186 | Aug. 07, 1900 | H.A. Bertheau | Rear-Compression Explosive-Engine | internal combustion engines |
| 1,791,969 | Feb. 10, 1931 | H.D. Murray | Gas Engine | gas and gasoline engines |
