| All Patents in class 123/41.44 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 14,160 | Jan. 29, 1856 | H. Knowles | Mortising tool |
| | 276,751 | May 01, 1883 | C.W. Baldwin | Gas Engine |
 | 278,255 | May 22, 1883 | L.H. Nash | Gas Engine |
| | 325,379 | Sep. 01, 1885 | C.W. Baldwin | Gas Engine |
| | 433,806 | Aug. 05, 1890 | N.A. Otto | Motor Engine Worked by Oil Vapor |
| | 510,140 | Dec. 05, 1893 | G.E. Hoyt | Gas Engine |
| | 557,493 | Mar. 31, 1896 | J.F. Daly, W.L. Corson | Gas Engine |
| | 570,649 | Nov. 03, 1896 | R.J. Rolfson | Gas Engine |
| | 585,434 | Jun. 29, 1897 | W.E. Gibbon | Explosive Engine |
| | 589,150 | Aug. 31, 1897 | J.C. Wilson | Gas Engine |
