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| Patents Granted on 1839-08-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| RE11 | Aug. 31, 1839 | D. Williams | Improvement in the Art of Tailoring | rules | |
| 20 | Aug. 31, 1839 | W. Duchman | Saddle-Spring | saddles | |