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| Patents for Henry Dryhurst | |||||
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| Number | Date | Patentee | Title | Type | |
| 343,178 | Jun. 08, 1886 | G.W. Jopson | Calipers | calipers | |
| 600,122 | Mar. 01, 1898 | C.F. Doebler | Nail-puller | nail extractors | |