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| Patents for William L. Young | |||||
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| Number | Date | Patentee | Title | Type | |
| 12,452 | Feb. 27, 1855 | W.L. Young | Machine for cutting barrel-heads | barrel making machines | |
| 131,648 | Sep. 24, 1872 | W.L. Young | Machine for making escalator treads | specialty woodworking machines | |
| 311,501 | Feb. 03, 1885 | W. Lucas | Sawing-machine | drag saws | |