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| Patents Granted on 1852-04-06 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,852 | Apr. 06, 1852 | W.C. Bronson | Reciprocating gang sawmill | reciprocating sawmills | |
| 8,854 | Apr. 06, 1852 | J.W. Cochran | Stone-cutting machine | ||
| 8,864 | Apr. 06, 1852 | J. Thompson | Thrashing Machine | threshers and thrashers | |
| 8,866 | Apr. 06, 1852 | J. Urmy | Improvement in Seed-Planters | ||