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| Patents for J. C. Tappan | |||||
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| Number | Date | Patentee | Title | Type | |
| 585,412 | Jun. 29, 1897 | T.G. Thomas | Wrench | quick adjust wrenches | |
| 641,122 | Jan. 09, 1900 | H.O. Kruschke | Scythe Wrench | auxiliary wrenches | |