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| Patents for William T. Dennis | |||||
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| Number | Date | Patentee | Title | Type | |
| 22,711 | Jan. 25, 1859 | W.T. Dennis | Sugar Cane Mill | sugar cane apparatus | |
| 52,537 | Feb. 13, 1866 | J. Conner | Improvement in straw-cutters | hay or straw cutters | |