| All Patents in class 123/71V |
Patents 1 -
10
of 20
      |
| Picture | Number | Date | Patentee | Title |
| | 291,065 | Jan. 01, 1884 | H.S. Maxim | Gas Motor |
| | 295,784 | Mar. 25, 1884 | H.S. Maxim | Gas Engine |
| | 297,329 | Apr. 22, 1884 | S.L. Wiegand | Gas Engine |
| | 359,920 | Mar. 22, 1887 | L.T. Cornell | Gas Engine |
 | 383,775 | May 29, 1888 | C. Sintz | Gas Engine |
 | 406,263 | Jul. 02, 1889 | L.T. Cornell | Gas Engine |
| | 545,709 | Sep. 03, 1895 | F.S. Mead | Gas Engine |
| | 548,772 | Oct. 29, 1895 | J.R. Bridges | Explosive Gas Engine |
| | 550,785 | Dec. 03, 1895 | J.E. Friend | Hydrocarbon Motor |
| | 560,920 | May 26, 1896 | H.L. Parker | Gas Engine |
