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| Patents for W. B. Guernsey | |||||
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| Number | Date | Patentee | Title | Type | |
| 186,588 | Jan. 23, 1877 | D. Maydole | Forging Adz-Eye Claw-Hammers | hammers | |
| 186,590 | Jan. 23, 1877 | D. Maydole | Dies For Forging Hammers | hammers | |
| 213,766 | Apr. 01, 1879 | D. Maydole | Mode of Forging Hammers | hammers | |