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| Patents for David B. Flint | |||||
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| Number | Date | Patentee | Title | Type | |
| 87,806 | Mar. 16, 1869 | R. Hunt | Improvement in fulling-mills | dressing cloth | |
| 91,338 | Jun. 15, 1869 | R. Hunt | Improvement in water-wheels | water wheels | |
| 105,082 | Jul. 05, 1870 | R. Hunt | Improvement in machines for fulling cloth | dressing cloth | |
| 171,656 | Jan. 04, 1876 | D.B. Flint | Improvement in turbines | turbine water wheels | |