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| Patents for A. J. Chapman | |||||
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| Number | Date | Patentee | Title | Type | |
| 281,463 | Jul. 17, 1883 | J.C. Coram | Bench Vise | bench vises | |
| 431,636 | Jul. 08, 1890 | W.S. Whitman | Reversing edger carriage | circular ripsaws | |