| All Patents in class 123/69V |
Patents 16 -
30
of 50
      |
| Number | Date | Patentee | Title | Type |
| 337,000 | Mar. 02, 1886 | J.P. Holland | Hydrocarbon Engine | gas and gasoline engines |
| 348,999 | Sep. 14, 1886 | J.F. Place | Gas Engine | gas and gasoline engines |
| 350,077 | Sep. 28, 1886 | N.A. Otto | Gas Motor Engine | gas and gasoline engines |
| 355,101 | Dec. 28, 1886 | N.B. Randall | Gas Engine | gas and gasoline engines |
| 383,775 | May 29, 1888 | C. Sintz | Gas Engine | gas and gasoline engines |
| 388,372 | Aug. 21, 1888 | N.A. Otto | Gas Motor Engine | gas and gasoline engines |
| 408,483 | Aug. 06, 1889 | H. Hoelljes | Method of Operating Gas Engines | gas and gasoline engines |
| 415,197 | Nov. 19, 1889 | H.J. Hartig | Gas Engine | gas and gasoline engines |
| 415,446 | Nov. 19, 1889 | J. Charter | Hydrocarbon or Gas Engine | gas and gasoline engines |
| 434,171 | Aug. 12, 1890 | C.W. Baldwin | Gas Engine | gas and gasoline engines |
| 437,776 | Oct. 07, 1890 | E.H. Gaze | Gas Engine | gas and gasoline engines |
| 508,833 | Nov. 14, 1893 | H. Junkers, W. Von Oechelhaeurser | Gas Engine | gas and gasoline engines |
| 514,211 | Feb. 06, 1894 | B.H. Coffey | Gas Engine | internal combustion engines |
| 542,972 | Jul. 16, 1895 | J. Bryan | Gas Engine | internal combustion engines |
| 544,586 | Aug. 13, 1895 | F.S. Mead | Gas or Oil Engine | gas and gasoline engines |
