| All Patents in class 123/41.69 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 284,555 | Sep. 04, 1883 | G.M. Hopkins | Gas Engine | gas and gasoline engines |
| 313,923 | Mar. 17, 1885 | G. Daimler | Gas Engine | gas and gasoline engines |
| 326,562 | Sep. 22, 1885 | L.N. Hopkins, G.M. Hopkins | Gas Engine | gas and gasoline engines |
| 596,271 | Dec. 28, 1897 | F.W. Lanchester | Cooling Device for Explosive Engines | cooling apparatus |
| 625,416 | May 23, 1899 | L.L. Revel | Carbureted Air or Other Fluid Pressure Engine | gas and gasoline engines |
| 654,356 | Jul. 24, 1900 | J. Rambaud | Gas or Petroleum Motor | gas and gasoline engines |
| 656,539 | Aug. 21, 1900 | R.A. Frisbie | Multiple-Cylinder Gas-Engine | gas and gasoline engines |
| 1,060,733 | May 06, 1913 | C.L. Bailey | Heat Radiating Device | cooling apparatus |
| 1,302,692 | May 06, 1919 | P.J. Messer | Engine Cylinder | cylinders |
