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| Patents for John N. Perkins | |||||
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| Number | Date | Patentee | Title | Type | |
| 690,668 | Jan. 07, 1902 | D.W. Solomon | Combined Saw Jointer and Gage | saw jointers | |
| 711,239 | Oct. 14, 1902 | E.B. Tree | Rotary Engine | ||