| All Patents in class 123/74AC |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
| | 276,749 | May 01, 1883 | C.W. Baldwin | Gas Engine |
| | 332,447 | Dec. 15, 1885 | C. Sherburne | Gas Engine |
| | 514,211 | Feb. 06, 1894 | B.H. Coffey | Gas Engine |
| | 532,412 | Jan. 08, 1895 | P. Bilbault | Gas or Petroleum Engine |
| | 537,370 | Apr. 09, 1895 | C.V. Walls | Gas Engine |
| | 543,614 | Jul. 30, 1895 | J. Day | Gas Engine |
| | 598,986 | Feb. 15, 1898 | G.H. Gere | Combustible Vapor Engine |
| | 630,083 | Aug. 01, 1899 | G. Horn, G. Hirt | Explosive Gas Engine |
| | 640,393 | Jan. 02, 1900 | G.W. Lewis | Gas Engine |
| | 640,673 | Jan. 02, 1900 | G.W. Lewis | Gas Engine |
