| All Patents in class 200/19.18 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 583,495 | Jun. 01, 1897 | H.B. Maxwell | Gas Engine | gas and gasoline engines |
| 593,034 | Nov. 02, 1897 | F.W. Spacke | Gas Engine | gas and gasoline engines |
| 632,763 | Sep. 12, 1899 | H. Smith | Explosive Gas Engine | gas and gasoline engines |
| RE11,775 | Sep. 26, 1899 | A.G. Pace | Combustion Engine | internal combustion engines |
| 651,741 | Jun. 12, 1900 | J.C. Anderson | Explosive Liquid-Air Engine | internal combustion engines |
| 664,360 | Dec. 18, 1900 | A.T. Otto | Igniter for Gas or Oil Engines | ignition systems |
| 1,151,155 | Aug. 24, 1915 | W.O. Bingaman | Gas Engine | |
