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| Patents Granted on 1851-08-19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,298 | Aug. 19, 1851 | R. Cook | Ventilating and Excluding Dust from Railroad-Cars | ||
| 8,307 | Aug. 19, 1851 | A.S. Hosley | Ship's Model Measurer | measurement gauges | |