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| Patents for William T. Williams | |||||
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| Number | Date | Patentee | Title | Type | |
| 125,759 | Apr. 16, 1872 | W.H. Richards | Center-Bit Style Countersink | countersinks | |
| 599,578 | Feb. 22, 1898 | W.T. Williams | Pipe Or Nut Wrench | screw adjust wrenches | |