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| All Patents in class 123/26 | |||||
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| Number | Date | Patentee | Title | Type | |
| 258,884 | Jun. 06, 1882 | H.H. Burritt | Gas Motor Engine | gas and gasoline engines | |
| 278,256 | May 22, 1883 | L.H. Nash | Gas Engine | gas and gasoline engines | |
| 548,142 | Oct. 15, 1895 | H. Schumm | Apparatus for Working Gas or Oil Engines | gas and gasoline engines | |
| 640,890 | Jan. 09, 1900 | J.E. Eisenhuth | Air and Gas Engine | gas and gasoline engines | |
| 1,022,177 | Apr. 02, 1912 | B. Brazelle | Internal-combustion motor | gas and gasoline engines | |