| All Patents in class 123/73R |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 532,865 | Jan. 22, 1895 | A.W. Brown | Vapor Engine | |
| 592,669 | Oct. 26, 1897 | C. Sintz | Gas Engine | gas and gasoline engines |
| 632,814 | Sep. 12, 1899 | B.M. Bullock, J.D. Hay | Gas Engine | gas and gasoline engines |
| 862,653 | Aug. 06, 1907 | C.A. Smith, H.A. Pedrick | Rock Drill | stone boring and drilling machines |
| 1,791,443 | Feb. 03, 1931 | C.A. Bjornnson, C.P. Clark | Fuel Injection Mechanism and Method | cylinder heads |
| 2,801,621 | Aug. 06, 1957 | R. Anderson, P.R. Hunt | Fuel-pump carburetor | |
