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| Patents for William H. Northall | |||||
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| Number | Date | Patentee | Title | Type | |
| 292,135 | Jan. 15, 1884 | W.H. Northall | Bench Vise | bench vises | |
| 331,905 | Dec. 08, 1885 | W.H. Northall | Bench Vise | bench vises | |
| 332,209 | Dec. 08, 1885 | W.H. Northall | Bench Vise | bench vises | |