| All Patents in class 60/39.821 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 269,146 | Dec. 12, 1882 | H. Wiedling | Gas Engine | gas and gasoline engines |
| 292,864 | Feb. 05, 1884 | J. Schweizer | Gas Motor Engine | gas and gasoline engines |
| 547,414 | Oct. 08, 1895 | J.J. Boardman | Gas Engine | gas and gasoline engines |
| 574,311 | Dec. 29, 1896 | J.W. Eisenhuth | Expansion Gas Engine | gas and gasoline engines |
| 642,949 | Feb. 06, 1900 | P.B. Verity, J.L. Baillie | Combustion Engine | gas turbines |
| 666,839 | Jan. 29, 1901 | H.L. Arnold | Internal Combustion Engine | internal combustion engines |
| 981,339 | Jan. 10, 1911 | E.C. Warren | Internal Combustion Pressure Generator | gas generators |
