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| Patents for Laurence T. Dickinson | |||||
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| Number | Date | Patentee | Title | Type | |
| 82,399 | Sep. 22, 1868 | L.T. Dickinson, C. Gilpin | Improvement in rossing-machines | debarking machines | |
| 82,400 | Sep. 22, 1868 | L.T. Dickinson, C. Gilpin | Improvement in rossing-machines | debarking machines | |