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| All Patents in class 76/84 | |||||
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| Number | Date | Patentee | Title | Type | |
| 29,336 | Jul. 24, 1860 | J.W. Wood | Edge tool Sharpener | woodworking machine sharpening mechanisms | |
| 198,668 | Dec. 25, 1877 | W.T. Nicholson | Improvement in Butchers' Steels | ||
| 339,683 | Apr. 13, 1886 | W.H. Parkin | Emery Knife Sharpener | sharpening apparatus | |