| All Patents in class 123/90.65 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 401,453 | Apr. 16, 1889 | L.H. Nash | Gas Engine | gas and gasoline engines |
| 418,417 | Dec. 31, 1889 | L.H. Nash | Gas Engine | gas and gasoline engines |
| 718,511 | Jan. 13, 1903 | J.A. Ostenberg | Explosion Engine | internal combustion engine governors |
| 787,417 | Apr. 18, 1905 | E. Westman | Governing Device for Valve and Igniter Gear for Explosive Engines | internal combustion engine governors |
| 818,714 | Apr. 24, 1906 | H.J. Smith | Valve Mechanism for Gas Engines | internal combustion engine valves |
| 2,631,576 | Mar. 17, 1953 | C.H. Schowalter | Valve Operating Mechanism | internal combustion engine valves |
