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| Patents for Isaiah M. Furbish | |||||
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| Number | Date | Patentee | Title | Type | |
| 277,561 | May 15, 1883 | I.M. Furbish | Screwdriver | ratcheting screwdrivers | |
| 298,457 | May 13, 1884 | I.M. Furbish | Hand-drill | eggbeater drills | |