| All Patents in class 123/90.23 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 530,161 | Dec. 04, 1894 | L. Crébessac | Petroleum, Gas or Oil Engine | gas and gasoline engines |
| 532,980 | Jan. 22, 1895 | F.P. Mill | Gas Engine | gas and gasoline engines |
| 565,786 | Aug. 11, 1896 | M.F. Bates, R.E. Olds | Gas or Vapor Engine | internal combustion engines |
| 806,125 | Dec. 05, 1905 | F.O. Farwell | Rotary Explosive Engine | rotary engines |
| 816,047 | Mar. 27, 1906 | S. Byron, C.M. Smith | Valve Mechanism for Gas Engines | valves |
| 1,458,223 | Jun. 12, 1923 | A.Y. Edwards | Valve Mechanism for Internal Combustion Engines | internal combustion engine valves |
