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| Patents for George Dryden | |||||
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| Number | Date | Patentee | Title | Type | |
| 79,640 | Jul. 07, 1868 | G. Dryden | Improvement in machines for boring wood | drilling and boring | |
| 89,207 | Apr. 20, 1869 | G. Dryden | Improvement in wood-working machines | matchers | |
| 159,164 | Jan. 26, 1875 | G. Dryden | Improvement in boring-machines | drill presses | |