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| Patents Granted on 1827-05-18 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,759X | May 18, 1827 | J. Tyler | Cleaning machine for wheat, rye, etc. | miller | |
| 4,760X | May 18, 1827 | J. Price | Carts for removing earth | ||
| 4,761X | May 18, 1827 | H. Wales | Air funnel stoves | stoves | |
| 4,762X | May 18, 1827 | J. Howe | Machine for pressing brick | brick maker | |
| 4,763X | May 18, 1827 | R. Sweeny | Cast iron plough | plows | |