| All Patents in class 123/45R |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 392,191 | Nov. 06, 1888 | H.T. Dawson | Gas Engine | gas and gasoline engines |
| 466,331 | Jan. 05, 1892 | H.T. Dawson | Gas Engine | gas and gasoline engines |
| 513,486 | Jan. 30, 1894 | H.T. Dawson | Gas Engine | internal combustion engines |
| 582,271 | May 11, 1897 | H.T. Dawson | Oil or Gas Engine | internal combustion engines |
| 628,122 | Jul. 04, 1899 | W.S. Sharpneck | Gas Engine | gas and gasoline engines |
| 628,124 | Jul. 04, 1899 | W.S. Sharpneck | Gas Engine | gas and gasoline engines |
| 651,741 | Jun. 12, 1900 | J.C. Anderson | Explosive Liquid-Air Engine | internal combustion engines |
