| All Patents in class 123/73AB |
Patents 16 -
23
of 23
      |
| Number | Date | Patentee | Title | Type |
| 620,602 | Mar. 07, 1899 | H.P. Maxim | Explosive Engine | gas and gasoline engines |
| 620,941 | Mar. 14, 1899 | G.W. Lewis | Explosive Engine | gas and gasoline engines |
| 632,913 | Sep. 12, 1899 | F. Burger | Gas Engine | gas and gasoline engines |
| 640,394 | Jan. 02, 1900 | G.W. Lewis | Gas Engine | gas and gasoline engines |
| 648,914 | May 08, 1900 | H.A. Bertheau | Vaporizer for Petroleum-Motors | carburetors |
| 650,789 | May 29, 1900 | J.S. Losch | Gas Engine | gas and gasoline engines |
| 659,944 | Oct. 16, 1900 | H.D. Weed | Gas Engine | gas and gasoline engines |
| 933,960 | Sep. 14, 1909 | D.H. Coles | Internal Combustion Engine | exhaust mechanisms |
