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| Patents Granted on 1839-08-29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,304 | Aug. 29, 1839 | S. Colt | Improvement in fire-arms and in the apparatus used therewith | revolvers | |
| 1,305 | Aug. 29, 1839 | E. Hall | Metal drill | drilling and boring | |