| All Patents in class 123/41.72 |
Patents 1 -
10
of 42
      |
| Picture | Number | Date | Patentee | Title |
 | 4,800 | Oct. 07, 1846 | S. Perry | Gas Engine |
| | 153,245 | Jul. 21, 1874 | G.W. Daimler | Gas Motor Engines |
| | 155,087 | Sep. 15, 1874 | J. Hirsch | Hot Air Engines |
| | 168,623 | Oct. 11, 1875 | G.W. Daimler | Air and Gas Engine |
| | 247,741 | Oct. 04, 1881 | E. Bénier | Gas Engine |
 | 302,045 | Jul. 15, 1884 | J. Spiel | Gas Engine |
| | 343,744 | Jun. 15, 1886 | S. Wilcox | Gas Engine |
| | 347,469 | Aug. 17, 1886 | J.H. Clark | Gas Engine |
 | 351,393 | Oct. 26, 1886 | P. Murray, Jr. | Gas Engine |
 | 351,394 | Oct. 26, 1886 | P. Murray, Jr. | Gas Engine |
