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| Patents for Franz Bürger | |||||
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| Picture | Number | Date | Patentee | Title | |
| 170,813 | Dec. 07, 1875 | F. Bürger | Coal-Oil Motor | ||
| 222,569 | Dec. 16, 1879 | F. Bürger | Gas-Engine | ||
| 222,660 | Dec. 16, 1879 | F. Bürger | Gas-Engine | ||