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| Patents for Stephen Sturdevant | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,323X | Jan. 07, 1831 | M.D. Mann, S. Sturdevant | Vertical Type Caster | type casting machines | |
| 6,324X | Jan. 08, 1831 | S. Sturdevant | Type Rubber or Machine for Smoothing the Bodies of Types | printer | |