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| Patents Granted on 1811-05-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,527X | May 30, 1811 | D. Parker, J. Sandford | Machine for shaving shingles | shingle machines | |
| 1,528X | May 30, 1811 | J. King, V. King | Working certain ores | ||