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| All Patents in class 123/41.85 | |||||
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| Number | Date | Patentee | Title | Type | |
| 269,163 | Dec. 12, 1882 | K. Teichmann | Gas Engine | gas and gasoline engines | |
| 322,650 | Jul. 21, 1885 | C. Shelburne | Gas Engine | gas and gasoline engines | |
| 347,469 | Aug. 17, 1886 | J.H. Clark | Gas Engine | gas and gasoline engines | |
| 374,056 | Nov. 29, 1887 | C.J. Gaume | Gas Engine | gas and gasoline engines | |
| 505,767 | Sep. 26, 1893 | P.H. Irgens | Gas or Petroleum Engine | ||
| 2,724,372 | Nov. 22, 1955 | C.H. Schowalter | Engine Cylinder Scavenging | diesel engines | |