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| Patents Granted on 1844-07-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,683 | Jul. 30, 1844 | H. Baker | Machine for making barrels | barrel making machines | |
| 3,687 | Jul. 30, 1844 | R.M. Hoe | Improvement in printing-presses | printer | |