| All Patents in class 123/193.1 |
Patents 16 -
30
of 33
      |
| Number | Date | Patentee | Title | Type |
| 408,683 | Aug. 13, 1889 | C.W. Baldwin | Gas Engine | gas and gasoline engines |
| 432,114 | Jul. 15, 1890 | G.B. Brayton | Gas and Air Engine | |
| 466,331 | Jan. 05, 1892 | H.T. Dawson | Gas Engine | gas and gasoline engines |
| 548,772 | Oct. 29, 1895 | J.R. Bridges | Explosive Gas Engine | gas and gasoline engines |
| 553,488 | Jan. 21, 1896 | W.W. Grant | Gas Engine | gas and gasoline engines |
| 572,209 | Dec. 01, 1896 | E.E. Ludl | Explosive Engine | |
| 593,034 | Nov. 02, 1897 | F.W. Spacke | Gas Engine | gas and gasoline engines |
| 605,583 | Jun. 14, 1898 | R.L. Merritt | Internal Combustion Engine | internal combustion engines |
| 608,968 | Aug. 09, 1898 | W. Morava | Gas or Oil Motor for Bycycles | gas and gasoline engines |
| 618,435 | Jan. 31, 1899 | G. Palm | Gas Engine | gas and gasoline engines |
| 630,838 | Aug. 15, 1899 | E.A. Ericksson, C.A. Anderson | Gas or Oil Engine | gas and gasoline engines |
| 654,761 | Jul. 31, 1900 | G. Palm | Combined Steam and Explosive Engine | steam engines |
| 666,368 | Jan. 22, 1901 | H.F. Wallman | Internal Combustion Engine | internal combustion engines |
| 705,058 | Jul. 22, 1902 | J.B. Fenner | Operating Mechanism for Gas Engine Valves, &c. | internal combustion engine valves |
| 1,616,391 | Feb. 01, 1927 | E. Prouty | Internal-Combustion Engine | internal combustion engines |
