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| Patents for A. Gregory | |||||
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| Number | Date | Patentee | Title | Type | |
| 12,030 | Dec. 05, 1854 | H.R. Miller | Mill for Shelling and Grinding Corn | miller | |
| 15,572 | Aug. 19, 1856 | J. Potter | Tenoning-machine | tenoning machines | |
| 16,308 | Dec. 23, 1856 | J.H. Goodell | Machine for cutting veneers from the log | veneer machines | |
| 158,248 | Dec. 29, 1874 | J.W. Cochran | Improvement in car-springs | ||