| All Patents in class 123/402 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 77,387 | Apr. 28, 1868 | W.H. Laubach | Valve for Gas Engine | internal combustion engine valves |
| 408,683 | Aug. 13, 1889 | C.W. Baldwin | Gas Engine | gas and gasoline engines |
| 615,393 | Dec. 06, 1898 | J.S. Klein | Supply Controlling Mechanism for Gas Engines | internal combustion engine governors |
| 627,338 | Jun. 20, 1899 | L.S. Kirker | Gas Engine | gas and gasoline engines |
| 634,063 | Oct. 03, 1899 | L.A. Letombe, C.J. Mollet-Fontaine | Gas Motor | gas and gasoline engines |
| 659,426 | Oct. 09, 1900 | A.A. Williams | Gas Engine | gas and gasoline engines |
| 705,058 | Jul. 22, 1902 | J.B. Fenner | Operating Mechanism for Gas Engine Valves, &c. | internal combustion engine valves |
| 706,916 | Aug. 12, 1902 | J.B. Fenner | Fuel Valve for Gas Engines | internal combustion engine valves |
| 1,116,192 | Nov. 03, 1914 | A. Winton | Vaporizing Device | carburetors |
