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| All Patents in class 123/41.35 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 195,585 | Sep. 25, 1877 | F. Dieckmann | Gas-Engines | ||
| 269,163 | Dec. 12, 1882 | K. Teichmann | Gas Engine | ||
 | 278,255 | May 22, 1883 | L.H. Nash | Gas Engine | |
| 343,745 | Jun. 15, 1886 | S. Wilcox | Gas Engine | ||
| 593,859 | Nov. 16, 1897 | A. Rosenberg | Gas Engine | ||
| 666,368 | Jan. 22, 1901 | H.F. Wallman | Internal Combustion Engine | ||
| 2,136,416 | Nov. 15, 1938 | W.C. Dehn | Piston | ||