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| Patents for John Foos | |||||
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| Number | Date | Patentee | Title | Type | |
| 494,134 | Mar. 28, 1893 | C.F. Endter, J. Foos | Gas Engine | gas and gasoline engines | |
| 527,635 | Oct. 16, 1894 | H. Voll | Gas Engine | gas and gasoline engines | |