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| Patents for B. Washington Miller | |||||
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| Number | Date | Patentee | Title | Type | |
| 458,635 | Sep. 01, 1891 | P. Medart | Belt-pulley | industrial machine pulleys and belt drive mechanisms | |
| 459,458 | Sep. 15, 1891 | P. Medart | Friction-clutch | friction clutches | |