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| All Patents in class 60/685 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,137X | Jun. 05, 1828 | A. Greenleaf | Water wheels for mills | water wheels | |
| 1,293,713 | Feb. 11, 1919 | H.A. Chuse | Steam Engine | steam engine valves | |