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| Patents for E. K. Boynton | |||||
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| Number | Date | Patentee | Title | Type | |
| 342,507 | May 25, 1886 | G.H. Fox | Revolver | revolvers | |
| 390,216 | Oct. 02, 1888 | G.F. Evans | Speed Regulating Device | industrial machine pulleys and belt drive mechanisms | |
| 395,431 | Jan. 01, 1889 | G.E. Franklin | Improvements in Monkey Wrenches | wrench jaw components | |
| 523,020 | Jul. 17, 1894 | C. Tinglof | Wrench | screw adjust wrenches | |