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| All Patents in class 86/20.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,659 | Jun. 27, 1840 | H.W. Hewet | Screw Wrench | nut wrenches | |
| 491,847 | Feb. 14, 1893 | B.S. Miles | Barrel-heading press | barrel making machines | |