| All Patents in class 123/37 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
| | 269,813 | Dec. 26, 1882 | L.C. Parker | Gas Engine |
 | 270,202 | Jan. 09, 1883 | J. Charter | Gas Engine |
| | RE10,290 | Feb. 20, 1883 | L.C. Parker | Gas Engine |
| | 597,860 | Jan. 25, 1898 | S. Rolfe | Explosion Engine |
| | 620,602 | Mar. 07, 1899 | H.P. Maxim | Explosive Engine |
| | 621,572 | Mar. 21, 1899 | T.C. Kennedy | Explosive Engine |
| | 655,473 | Aug. 07, 1900 | E.C. Wood | Gas Engine |
| | 661,439 | Nov. 06, 1900 | E. Boulier, A. Boulier | Explosion Engine |
 | 878,925 | Feb. 11, 1908 | E.J. Woolf | Reversible Explosive Compound-Engine. |
 | 1,022,177 | Apr. 02, 1912 | B. Brazelle | Internal-combustion motor |
