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| Patents Granted on 1834-05-21 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,211X | May 21, 1834 | L. Burnell | Propelling boats on canals and in shoal water | nautical propulsion apparatus | |
| 8,212X | May 21, 1834 | L. Burnell | Boilers for steam engines | stationary boilers | |