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| Patents for Jonas Keller | |||||
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| Number | Date | Patentee | Title | Type | |
| FX-5,212 | Aug. 29, 1828 | U. Brown | Improvement in steam engines, &c. | steam engines | |
| NX-182,808,291 | Aug. 29, 1828 | U. Brown | Improvement in steam engines, &c. | steam engines | |