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| Patents for David Hall Rice | |||||
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| Number | Date | Patentee | Title | Type | |
| 418,345 | Dec. 31, 1889 | S.A. Woods, J.R. Thomas | Planing machine | wood planers | |
| 496,919 | May 09, 1893 | H.R. Tillison | Loose pulley | industrial machine pulleys and belt drive mechanisms | |