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| Patents for William H. McCoy | |||||
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| Number | Date | Patentee | Title | Type | |
| 118,039 | Aug. 15, 1871 | W.H. McCoy | Bit-stock | brace chucks | |
| 421,420 | Feb. 18, 1890 | W.H. McCoy | Jaws of bit-braces and tool holders | brace chucks | |
| 529,401 | Nov. 20, 1894 | H. Pratt, W.H. McCoy | Spiral screw driver and drill | spiral screwdrivers | |
| 568,539 | Sep. 29, 1896 | W.H. McCoy | Chuck | drill chucks | |
| 586,053 | Jul. 06, 1897 | W.H. McCoy | Angle-Borer | drill accessories | |
| 621,401 | Mar. 21, 1899 | L.M. Davis | Spiral-tool driver | spiral screwdrivers | |