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| Patents for William J. Mewer | |||||
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| Number | Date | Patentee | Title | Type | |
| 529,023 | Nov. 13, 1894 | J.W. Duff | Rotary support for hand drills | ||
| 566,923 | Sep. 01, 1896 | W.J. Mewer | Chain Drill | brace chucks | |