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| Patents for L. S. Spencer | |||||
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| Number | Date | Patentee | Title | Type | |
| 128,045 | Jun. 18, 1872 | J.L. Isbell | Woodworkers Vise | woodworkers vises | |
| 132,702 | Oct. 29, 1872 | L. Ward | Improvement in machines for turning spokes | wood lathes | |