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| Patents for George D. Avery | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,051X | Dec. 28, 1818 | G.D. Avery | Plough | plows | |
| 4,029X | Feb. 15, 1825 | G.D. Avery | Plough | plows | |
| 4,065X | Mar. 25, 1825 | G.D. Avery | Plough | plows | |