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| Patents for W. H. Knight | |||||
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| Number | Date | Patentee | Title | Type | |
| 442,155 | Dec. 09, 1890 | G.F. Virtue | Insulating Covering For Pincher Handles | pliers | |
| 677,350 | Jul. 02, 1901 | C.W. Grant | Tool-holder | lathe tool holders and tool posts | |