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| Patents for William Stephens | |||||
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| Number | Date | Patentee | Title | Type | |
| 12,423 | Feb. 20, 1855 | W. Stephens | Slide Rest for Lathes | metal lathes | |
| 16,811 | Mar. 10, 1857 | W. Stephens | Chuck for Watchmakers' Lathe | metal lathe chucks | |
| 138,243 | Apr. 29, 1873 | J. Gates | Improvement in lubricators | lubricators | |