| All Patents in class 123/198D |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 305,467 | Sep. 23, 1884 | P. Murray, Jr. | Gas Engine | gas and gasoline engines |
| 347,469 | Aug. 17, 1886 | J.H. Clark | Gas Engine | gas and gasoline engines |
| 434,695 | Aug. 19, 1890 | J.F. Daly, M.M. Barrett | Gas or Vapor Engine Attachment | carburetors |
| 538,855 | May 07, 1895 | L.G. Woolley | Fire Stop for Combustible Vapor Engines | cooling apparatus |
| 2,306,549 | Dec. 29, 1942 | T.G. Louis | Automatically adjustable cam-operated ignition circuit breaker | ignition systems |
| 2,474,500 | Jun. 28, 1949 | F.K. Stein | High-low speed attachment for drill presses | industrial machine pulleys and belt drive mechanisms |
