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| Patents for Henry B. Graves | |||||
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| Number | Date | Patentee | Title | Type | |
| 396,227 | Jan. 15, 1889 | L.N. Norcross | Work-support for lathe | wood lathes | |
| 1,276,071 | Aug. 20, 1918 | W.L. Ringling | Wrench | spoke nipple wrenches | |