| All Patents in class 123/88 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 377,962 | Feb. 14, 1888 | R.F. Smith | Gas Engine |
 | 439,702 | Nov. 04, 1890 | H.A. Stuart | Petroleum Engine or Motor |
| | 452,520 | May 19, 1891 | A. Harding | Explosive Engine |
| | 590,080 | Sep. 14, 1897 | J.S. Walch | Explosive Gas Engine |
| | 626,275 | Jun. 06, 1899 | J. Froelich | Speed Regulator for Explosive Engines |
| | 654,356 | Jul. 24, 1900 | J. Rambaud | Gas or Petroleum Motor |
| | 661,078 | Nov. 06, 1900 | J.B. Roger | Vapor Engine |
| | 816,047 | Mar. 27, 1906 | S. Byron, C.M. Smith | Valve Mechanism for Gas Engines |
