| All Patents in class 60/620 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
| | 317,892 | May 12, 1885 | D.S. Troy | Gas Engine |
| | 398,108 | Feb. 19, 1889 | C.T. Wiedling | Gas Engine |
 | 406,706 | Jul. 09, 1889 | W.J. Crossley | Compound Gas or Oil Motor Engine |
| | 421,474 | Feb. 18, 1890 | A. Schmid, J.C. Beckfeld | Gas Engine |
| | 432,720 | Jul. 22, 1890 | C. Beckfield | Gas Engine |
| | 457,459 | Aug. 11, 1891 | J.S. Conelly | Gas Motor |
| | 624,649 | May 09, 1899 | S.A. Hasbrouck | Convertible Compound Explosive Engine |
 | 627,220 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine |
| | 661,300 | Nov. 06, 1900 | F.L. Antisell, T.M. Antisell | Explosive-Gas Engine |
 | 881,214 | Mar. 10, 1908 | E.J. Woolf | Explosive Compound Engine |
