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| Patents Granted on 1834-04-16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,145X | Apr. 16, 1834 | I. Barnum | Steam pump vacuum | steam pumps | |
| 8,146X | Apr. 16, 1834 | J. Howe | Forge, or heating wind for blacksmith's fire | blacksmith | |
| 8,147X | Apr. 16, 1834 | B. Goodspeed, D.H. Wiswell | Circular, vertical, and angular sawing and boring machine | wheelwright | |
| 8,148X | Apr. 16, 1834 | J. Marck | Self-igniting cigars | ||