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| Patents for John L. Warren | |||||
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| Number | Date | Patentee | Title | Type | |
| 84,722 | Dec. 08, 1868 | J.L. Warren | Improvement in saws | dovetail saws | |
| 101,329 | Mar. 29, 1870 | J.L. Warren | Oval lathe | wood lathes | |